diff --git a/apps/openmw/mwclass/activator.cpp b/apps/openmw/mwclass/activator.cpp
index 17757cb6b7..8b41eec13c 100644
--- a/apps/openmw/mwclass/activator.cpp
+++ b/apps/openmw/mwclass/activator.cpp
@@ -66,9 +66,9 @@ namespace MWClass
         return ref->mBase->mName;
     }
 
-    std::string Activator::getScript (const MWWorld::Ptr& ptr) const
+    std::string Activator::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Activator> *ref =
+        const MWWorld::LiveCellRef<ESM::Activator> *ref =
             ptr.get<ESM::Activator>();
 
         return ref->mBase->mScript;
diff --git a/apps/openmw/mwclass/activator.hpp b/apps/openmw/mwclass/activator.hpp
index 646bb79bb2..6280587b1e 100644
--- a/apps/openmw/mwclass/activator.hpp
+++ b/apps/openmw/mwclass/activator.hpp
@@ -31,7 +31,7 @@ namespace MWClass
             virtual MWGui::ToolTipInfo getToolTipInfo (const MWWorld::Ptr& ptr) const;
             ///< @return the content of the tool tip to be displayed. raises exception if the object has no tooltip.
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual boost::shared_ptr<MWWorld::Action> activate (const MWWorld::Ptr& ptr, const MWWorld::Ptr& actor) const;
diff --git a/apps/openmw/mwclass/apparatus.cpp b/apps/openmw/mwclass/apparatus.cpp
index 07bf250860..b4d293cb83 100644
--- a/apps/openmw/mwclass/apparatus.cpp
+++ b/apps/openmw/mwclass/apparatus.cpp
@@ -64,10 +64,9 @@ namespace MWClass
         return defaultItemActivate(ptr, actor);
     }
 
-    std::string Apparatus::getScript (const MWWorld::Ptr& ptr) const
+    std::string Apparatus::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Apparatus> *ref =
-            ptr.get<ESM::Apparatus>();
+        const MWWorld::LiveCellRef<ESM::Apparatus> *ref = ptr.get<ESM::Apparatus>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/apparatus.hpp b/apps/openmw/mwclass/apparatus.hpp
index 94e998e488..071bf83bd3 100644
--- a/apps/openmw/mwclass/apparatus.hpp
+++ b/apps/openmw/mwclass/apparatus.hpp
@@ -31,7 +31,7 @@ namespace MWClass
                 const MWWorld::Ptr& actor) const;
             ///< Generate action for activation
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual int getValue (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/armor.cpp b/apps/openmw/mwclass/armor.cpp
index 631ddd9129..e51ea11e06 100644
--- a/apps/openmw/mwclass/armor.cpp
+++ b/apps/openmw/mwclass/armor.cpp
@@ -83,10 +83,9 @@ namespace MWClass
         return ref->mBase->mData.mHealth;
     }
 
-    std::string Armor::getScript (const MWWorld::Ptr& ptr) const
+    std::string Armor::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Armor> *ref =
-            ptr.get<ESM::Armor>();
+        const MWWorld::LiveCellRef<ESM::Armor> *ref = ptr.get<ESM::Armor>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/armor.hpp b/apps/openmw/mwclass/armor.hpp
index ec32908783..a7e63d6af3 100644
--- a/apps/openmw/mwclass/armor.hpp
+++ b/apps/openmw/mwclass/armor.hpp
@@ -36,7 +36,7 @@ namespace MWClass
             virtual int getItemMaxHealth (const MWWorld::Ptr& ptr) const;
             ///< Return item max health or throw an exception, if class does not have item health
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual std::pair<std::vector<int>, bool> getEquipmentSlots (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/book.cpp b/apps/openmw/mwclass/book.cpp
index 9ea9e659b6..1d645931dc 100644
--- a/apps/openmw/mwclass/book.cpp
+++ b/apps/openmw/mwclass/book.cpp
@@ -78,10 +78,9 @@ namespace MWClass
         return boost::shared_ptr<MWWorld::Action>(new MWWorld::ActionRead(ptr));
     }
 
-    std::string Book::getScript (const MWWorld::Ptr& ptr) const
+    std::string Book::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Book> *ref =
-            ptr.get<ESM::Book>();
+        const MWWorld::LiveCellRef<ESM::Book> *ref = ptr.get<ESM::Book>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/book.hpp b/apps/openmw/mwclass/book.hpp
index 8dcae731a2..90cb4d7627 100644
--- a/apps/openmw/mwclass/book.hpp
+++ b/apps/openmw/mwclass/book.hpp
@@ -28,7 +28,7 @@ namespace MWClass
                 const MWWorld::Ptr& actor) const;
             ///< Generate action for activation
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual bool hasToolTip (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/clothing.cpp b/apps/openmw/mwclass/clothing.cpp
index 7250e1837e..616f9676bb 100644
--- a/apps/openmw/mwclass/clothing.cpp
+++ b/apps/openmw/mwclass/clothing.cpp
@@ -66,10 +66,9 @@ namespace MWClass
         return defaultItemActivate(ptr, actor);
     }
 
-    std::string Clothing::getScript (const MWWorld::Ptr& ptr) const
+    std::string Clothing::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Clothing> *ref =
-            ptr.get<ESM::Clothing>();
+        const MWWorld::LiveCellRef<ESM::Clothing> *ref = ptr.get<ESM::Clothing>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/clothing.hpp b/apps/openmw/mwclass/clothing.hpp
index adb3491580..0489f0b314 100644
--- a/apps/openmw/mwclass/clothing.hpp
+++ b/apps/openmw/mwclass/clothing.hpp
@@ -28,7 +28,7 @@ namespace MWClass
                 const MWWorld::Ptr& actor) const;
             ///< Generate action for activation
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual std::pair<std::vector<int>, bool> getEquipmentSlots (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/container.cpp b/apps/openmw/mwclass/container.cpp
index aa5142cbdf..648a232c8e 100644
--- a/apps/openmw/mwclass/container.cpp
+++ b/apps/openmw/mwclass/container.cpp
@@ -209,10 +209,9 @@ namespace MWClass
         return ptr.getRefData().getCustomData()->asContainerCustomData().mContainerStore;
     }
 
-    std::string Container::getScript (const MWWorld::Ptr& ptr) const
+    std::string Container::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Container> *ref =
-            ptr.get<ESM::Container>();
+        const MWWorld::LiveCellRef<ESM::Container> *ref = ptr.get<ESM::Container>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/container.hpp b/apps/openmw/mwclass/container.hpp
index 3541937d12..d9c7daa079 100644
--- a/apps/openmw/mwclass/container.hpp
+++ b/apps/openmw/mwclass/container.hpp
@@ -40,7 +40,7 @@ namespace MWClass
             virtual MWWorld::ContainerStore& getContainerStore (const MWWorld::Ptr& ptr) const;
             ///< Return container store
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual float getCapacity (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/creature.cpp b/apps/openmw/mwclass/creature.cpp
index 4954ac54de..55bb895b71 100644
--- a/apps/openmw/mwclass/creature.cpp
+++ b/apps/openmw/mwclass/creature.cpp
@@ -444,9 +444,9 @@ namespace MWClass
         return isFlagBitSet(ptr, ESM::Creature::Weapon);
     }
 
-    std::string Creature::getScript (const MWWorld::Ptr& ptr) const
+    std::string Creature::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Creature> *ref = ptr.get<ESM::Creature>();
+        const MWWorld::LiveCellRef<ESM::Creature> *ref = ptr.get<ESM::Creature>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/creature.hpp b/apps/openmw/mwclass/creature.hpp
index 55127eefcf..fc1421d24b 100644
--- a/apps/openmw/mwclass/creature.hpp
+++ b/apps/openmw/mwclass/creature.hpp
@@ -74,7 +74,7 @@ namespace MWClass
 
             virtual bool hasInventoryStore (const MWWorld::Ptr &ptr) const;
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual float getCapacity (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/door.cpp b/apps/openmw/mwclass/door.cpp
index cf11dfedbf..5d5e695b8a 100644
--- a/apps/openmw/mwclass/door.cpp
+++ b/apps/openmw/mwclass/door.cpp
@@ -217,10 +217,9 @@ namespace MWClass
         return true;
     }
 
-    std::string Door::getScript (const MWWorld::Ptr& ptr) const
+    std::string Door::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Door> *ref =
-            ptr.get<ESM::Door>();
+        const MWWorld::LiveCellRef<ESM::Door> *ref = ptr.get<ESM::Door>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/door.hpp b/apps/openmw/mwclass/door.hpp
index db5a7f32a3..b06ee12df1 100644
--- a/apps/openmw/mwclass/door.hpp
+++ b/apps/openmw/mwclass/door.hpp
@@ -49,7 +49,7 @@ namespace MWClass
 
             virtual bool canLock(const MWWorld::Ptr &ptr) const;
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             static void registerSelf();
diff --git a/apps/openmw/mwclass/ingredient.cpp b/apps/openmw/mwclass/ingredient.cpp
index db2f2410b6..b7d1cf3d93 100644
--- a/apps/openmw/mwclass/ingredient.cpp
+++ b/apps/openmw/mwclass/ingredient.cpp
@@ -70,10 +70,9 @@ namespace MWClass
         return defaultItemActivate(ptr, actor);
     }
 
-    std::string Ingredient::getScript (const MWWorld::Ptr& ptr) const
+    std::string Ingredient::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Ingredient> *ref =
-            ptr.get<ESM::Ingredient>();
+        const MWWorld::LiveCellRef<ESM::Ingredient> *ref = ptr.get<ESM::Ingredient>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/ingredient.hpp b/apps/openmw/mwclass/ingredient.hpp
index 69dd70743f..00862a2203 100644
--- a/apps/openmw/mwclass/ingredient.hpp
+++ b/apps/openmw/mwclass/ingredient.hpp
@@ -34,7 +34,7 @@ namespace MWClass
             virtual MWGui::ToolTipInfo getToolTipInfo (const MWWorld::Ptr& ptr) const;
             ///< @return the content of the tool tip to be displayed. raises exception if the object has no tooltip.
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual int getValue (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/light.cpp b/apps/openmw/mwclass/light.cpp
index fe51490775..615f9fac02 100644
--- a/apps/openmw/mwclass/light.cpp
+++ b/apps/openmw/mwclass/light.cpp
@@ -96,10 +96,9 @@ namespace MWClass
         return defaultItemActivate(ptr, actor);
     }
 
-    std::string Light::getScript (const MWWorld::Ptr& ptr) const
+    std::string Light::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Light> *ref =
-            ptr.get<ESM::Light>();
+        const MWWorld::LiveCellRef<ESM::Light> *ref = ptr.get<ESM::Light>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/light.hpp b/apps/openmw/mwclass/light.hpp
index 6161f18997..b7ef199b08 100644
--- a/apps/openmw/mwclass/light.hpp
+++ b/apps/openmw/mwclass/light.hpp
@@ -34,7 +34,7 @@ namespace MWClass
                 const MWWorld::Ptr& actor) const;
             ///< Generate action for activation
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual std::pair<std::vector<int>, bool> getEquipmentSlots (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/lockpick.cpp b/apps/openmw/mwclass/lockpick.cpp
index 63f75a845c..3fae74be9d 100644
--- a/apps/openmw/mwclass/lockpick.cpp
+++ b/apps/openmw/mwclass/lockpick.cpp
@@ -65,10 +65,9 @@ namespace MWClass
         return defaultItemActivate(ptr, actor);
     }
 
-    std::string Lockpick::getScript (const MWWorld::Ptr& ptr) const
+    std::string Lockpick::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Lockpick> *ref =
-            ptr.get<ESM::Lockpick>();
+        const MWWorld::LiveCellRef<ESM::Lockpick> *ref = ptr.get<ESM::Lockpick>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/lockpick.hpp b/apps/openmw/mwclass/lockpick.hpp
index 3f2c004f8f..7e7ee78d54 100644
--- a/apps/openmw/mwclass/lockpick.hpp
+++ b/apps/openmw/mwclass/lockpick.hpp
@@ -34,7 +34,7 @@ namespace MWClass
             virtual MWGui::ToolTipInfo getToolTipInfo (const MWWorld::Ptr& ptr) const;
             ///< @return the content of the tool tip to be displayed. raises exception if the object has no tooltip.
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual std::pair<std::vector<int>, bool> getEquipmentSlots (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/misc.cpp b/apps/openmw/mwclass/misc.cpp
index a14ab33302..e5836bd964 100644
--- a/apps/openmw/mwclass/misc.cpp
+++ b/apps/openmw/mwclass/misc.cpp
@@ -78,10 +78,9 @@ namespace MWClass
         return defaultItemActivate(ptr, actor);
     }
 
-    std::string Miscellaneous::getScript (const MWWorld::Ptr& ptr) const
+    std::string Miscellaneous::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Miscellaneous> *ref =
-            ptr.get<ESM::Miscellaneous>();
+        const MWWorld::LiveCellRef<ESM::Miscellaneous> *ref = ptr.get<ESM::Miscellaneous>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/misc.hpp b/apps/openmw/mwclass/misc.hpp
index 394c9ffc01..e3215a6ad2 100644
--- a/apps/openmw/mwclass/misc.hpp
+++ b/apps/openmw/mwclass/misc.hpp
@@ -34,7 +34,7 @@ namespace MWClass
             virtual MWGui::ToolTipInfo getToolTipInfo (const MWWorld::Ptr& ptr) const;
             ///< @return the content of the tool tip to be displayed. raises exception if the object has no tooltip.
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual int getValue (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/npc.cpp b/apps/openmw/mwclass/npc.cpp
index 08743cb4f0..bbcee8d27c 100644
--- a/apps/openmw/mwclass/npc.cpp
+++ b/apps/openmw/mwclass/npc.cpp
@@ -799,10 +799,9 @@ namespace MWClass
         return ptr.getRefData().getCustomData()->asNpcCustomData().mInventoryStore;
     }
 
-    std::string Npc::getScript (const MWWorld::Ptr& ptr) const
+    std::string Npc::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::NPC> *ref =
-            ptr.get<ESM::NPC>();
+        const MWWorld::LiveCellRef<ESM::NPC> *ref = ptr.get<ESM::NPC>();
 
         return ref->mBase->mScript;
     }
diff --git a/apps/openmw/mwclass/npc.hpp b/apps/openmw/mwclass/npc.hpp
index c2d2ca8fa6..aa8b7e78ac 100644
--- a/apps/openmw/mwclass/npc.hpp
+++ b/apps/openmw/mwclass/npc.hpp
@@ -80,7 +80,7 @@ namespace MWClass
                 const MWWorld::Ptr& actor) const;
             ///< Generate action for activation
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual float getSpeed (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/potion.cpp b/apps/openmw/mwclass/potion.cpp
index 20a849019f..9816c3cbc4 100644
--- a/apps/openmw/mwclass/potion.cpp
+++ b/apps/openmw/mwclass/potion.cpp
@@ -68,9 +68,9 @@ namespace MWClass
         return defaultItemActivate(ptr, actor);
     }
 
-    std::string Potion::getScript (const MWWorld::Ptr& ptr) const
+    std::string Potion::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Potion> *ref =
+        const MWWorld::LiveCellRef<ESM::Potion> *ref =
             ptr.get<ESM::Potion>();
 
         return ref->mBase->mScript;
diff --git a/apps/openmw/mwclass/potion.hpp b/apps/openmw/mwclass/potion.hpp
index 091d291953..a38205257f 100644
--- a/apps/openmw/mwclass/potion.hpp
+++ b/apps/openmw/mwclass/potion.hpp
@@ -34,7 +34,7 @@ namespace MWClass
             virtual MWGui::ToolTipInfo getToolTipInfo (const MWWorld::Ptr& ptr) const;
             ///< @return the content of the tool tip to be displayed. raises exception if the object has no tooltip.
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual int getValue (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/probe.cpp b/apps/openmw/mwclass/probe.cpp
index 79f423b30d..0e3de75d4b 100644
--- a/apps/openmw/mwclass/probe.cpp
+++ b/apps/openmw/mwclass/probe.cpp
@@ -64,9 +64,9 @@ namespace MWClass
         return defaultItemActivate(ptr, actor);
     }
 
-    std::string Probe::getScript (const MWWorld::Ptr& ptr) const
+    std::string Probe::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Probe> *ref =
+        const MWWorld::LiveCellRef<ESM::Probe> *ref =
             ptr.get<ESM::Probe>();
 
         return ref->mBase->mScript;
diff --git a/apps/openmw/mwclass/probe.hpp b/apps/openmw/mwclass/probe.hpp
index e39e43c270..a6da5ab9d0 100644
--- a/apps/openmw/mwclass/probe.hpp
+++ b/apps/openmw/mwclass/probe.hpp
@@ -34,7 +34,7 @@ namespace MWClass
             virtual MWGui::ToolTipInfo getToolTipInfo (const MWWorld::Ptr& ptr) const;
             ///< @return the content of the tool tip to be displayed. raises exception if the object has no tooltip.
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual std::pair<std::vector<int>, bool> getEquipmentSlots (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/repair.cpp b/apps/openmw/mwclass/repair.cpp
index 78ec2adcca..700db167a2 100644
--- a/apps/openmw/mwclass/repair.cpp
+++ b/apps/openmw/mwclass/repair.cpp
@@ -64,9 +64,9 @@ namespace MWClass
         return defaultItemActivate(ptr, actor);
     }
 
-    std::string Repair::getScript (const MWWorld::Ptr& ptr) const
+    std::string Repair::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Repair> *ref =
+        const MWWorld::LiveCellRef<ESM::Repair> *ref =
             ptr.get<ESM::Repair>();
 
         return ref->mBase->mScript;
diff --git a/apps/openmw/mwclass/repair.hpp b/apps/openmw/mwclass/repair.hpp
index 295b9d4f15..3ec617bd3e 100644
--- a/apps/openmw/mwclass/repair.hpp
+++ b/apps/openmw/mwclass/repair.hpp
@@ -34,7 +34,7 @@ namespace MWClass
             virtual MWGui::ToolTipInfo getToolTipInfo (const MWWorld::Ptr& ptr) const;
             ///< @return the content of the tool tip to be displayed. raises exception if the object has no tooltip.
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual int getValue (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwclass/weapon.cpp b/apps/openmw/mwclass/weapon.cpp
index 5665bf1c45..cc5d8ed597 100644
--- a/apps/openmw/mwclass/weapon.cpp
+++ b/apps/openmw/mwclass/weapon.cpp
@@ -84,9 +84,9 @@ namespace MWClass
         return ref->mBase->mData.mHealth;
     }
 
-    std::string Weapon::getScript (const MWWorld::Ptr& ptr) const
+    std::string Weapon::getScript (const MWWorld::ConstPtr& ptr) const
     {
-        MWWorld::LiveCellRef<ESM::Weapon> *ref =
+        const MWWorld::LiveCellRef<ESM::Weapon> *ref =
             ptr.get<ESM::Weapon>();
 
         return ref->mBase->mScript;
diff --git a/apps/openmw/mwclass/weapon.hpp b/apps/openmw/mwclass/weapon.hpp
index 47c1157a02..88282f5a3c 100644
--- a/apps/openmw/mwclass/weapon.hpp
+++ b/apps/openmw/mwclass/weapon.hpp
@@ -40,7 +40,7 @@ namespace MWClass
             virtual int getItemMaxHealth (const MWWorld::Ptr& ptr) const;
             ///< Return item max health or throw an exception, if class does not have item health
 
-            virtual std::string getScript (const MWWorld::Ptr& ptr) const;
+            virtual std::string getScript (const MWWorld::ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr
 
             virtual std::pair<std::vector<int>, bool> getEquipmentSlots (const MWWorld::Ptr& ptr) const;
diff --git a/apps/openmw/mwworld/class.cpp b/apps/openmw/mwworld/class.cpp
index 30fd42527b..e57f8b2990 100644
--- a/apps/openmw/mwworld/class.cpp
+++ b/apps/openmw/mwworld/class.cpp
@@ -158,7 +158,7 @@ namespace MWWorld
         return -1;
     }
 
-    std::string Class::getScript (const Ptr& ptr) const
+    std::string Class::getScript (const ConstPtr& ptr) const
     {
         return "";
     }
diff --git a/apps/openmw/mwworld/class.hpp b/apps/openmw/mwworld/class.hpp
index b2d3453af6..2bbc450830 100644
--- a/apps/openmw/mwworld/class.hpp
+++ b/apps/openmw/mwworld/class.hpp
@@ -171,7 +171,7 @@ namespace MWWorld
             ///< Returns the remaining duration of the object, such as an equippable light
             /// source. (default implementation: -1, i.e. infinite)
 
-            virtual std::string getScript (const Ptr& ptr) const;
+            virtual std::string getScript (const ConstPtr& ptr) const;
             ///< Return name of the script attached to ptr (default implementation: return an empty
             /// string).