diff --git a/apps/openmw/mwclass/creature.cpp b/apps/openmw/mwclass/creature.cpp
index dc64fd3be..6646a7d79 100644
--- a/apps/openmw/mwclass/creature.cpp
+++ b/apps/openmw/mwclass/creature.cpp
@@ -675,7 +675,7 @@ namespace MWClass
         }
     }
 
-    int Creature::getBloodTexture(const MWWorld::Ptr &ptr) const
+    int Creature::getBloodTexture(const MWWorld::ConstPtr &ptr) const
     {
         int flags = ptr.get<ESM::Creature>()->mBase->mFlags;
 
diff --git a/apps/openmw/mwclass/creature.hpp b/apps/openmw/mwclass/creature.hpp
index 27dc197f9..720d87f17 100644
--- a/apps/openmw/mwclass/creature.hpp
+++ b/apps/openmw/mwclass/creature.hpp
@@ -114,7 +114,7 @@ namespace MWClass
             virtual int getSkill(const MWWorld::Ptr &ptr, int skill) const;
 
             /// Get a blood texture suitable for \a ptr (see Blood Texture 0-2 in Morrowind.ini)
-            virtual int getBloodTexture (const MWWorld::Ptr& ptr) const;
+            virtual int getBloodTexture (const MWWorld::ConstPtr& ptr) const;
 
             virtual void readAdditionalState (const MWWorld::Ptr& ptr, const ESM::ObjectState& state) const;
             ///< Read additional state from \a state into \a ptr.
diff --git a/apps/openmw/mwclass/npc.cpp b/apps/openmw/mwclass/npc.cpp
index be5f6c6db..350b644ed 100644
--- a/apps/openmw/mwclass/npc.cpp
+++ b/apps/openmw/mwclass/npc.cpp
@@ -1136,9 +1136,9 @@ namespace MWClass
         return ptr.getClass().getNpcStats(ptr).getSkill(skill).getModified();
     }
 
-    int Npc::getBloodTexture(const MWWorld::Ptr &ptr) const
+    int Npc::getBloodTexture(const MWWorld::ConstPtr &ptr) const
     {
-        MWWorld::LiveCellRef<ESM::NPC> *ref = ptr.get<ESM::NPC>();
+        const MWWorld::LiveCellRef<ESM::NPC> *ref = ptr.get<ESM::NPC>();
 
         if (ref->mBase->mFlags & ESM::NPC::Skeleton)
             return 1;
diff --git a/apps/openmw/mwclass/npc.hpp b/apps/openmw/mwclass/npc.hpp
index ba2679c08..684d891f9 100644
--- a/apps/openmw/mwclass/npc.hpp
+++ b/apps/openmw/mwclass/npc.hpp
@@ -130,7 +130,7 @@ namespace MWClass
             virtual int getSkill(const MWWorld::Ptr& ptr, int skill) const;
 
             /// Get a blood texture suitable for \a ptr (see Blood Texture 0-2 in Morrowind.ini)
-            virtual int getBloodTexture (const MWWorld::Ptr& ptr) const;
+            virtual int getBloodTexture (const MWWorld::ConstPtr& ptr) const;
 
             virtual bool isActor() const {
                 return true;
diff --git a/apps/openmw/mwworld/class.cpp b/apps/openmw/mwworld/class.cpp
index 9ff6beb8e..a0037df57 100644
--- a/apps/openmw/mwworld/class.cpp
+++ b/apps/openmw/mwworld/class.cpp
@@ -390,7 +390,7 @@ namespace MWWorld
         throw std::runtime_error("class does not support skills");
     }
 
-    int Class::getBloodTexture (const MWWorld::Ptr& ptr) const
+    int Class::getBloodTexture (const MWWorld::ConstPtr& ptr) const
     {
         throw std::runtime_error("class does not support gore");
     }
diff --git a/apps/openmw/mwworld/class.hpp b/apps/openmw/mwworld/class.hpp
index 10754de7d..04d22f91a 100644
--- a/apps/openmw/mwworld/class.hpp
+++ b/apps/openmw/mwworld/class.hpp
@@ -284,7 +284,7 @@ namespace MWWorld
             virtual bool isGold(const MWWorld::ConstPtr& ptr) const { return false; };
             
             /// Get a blood texture suitable for \a ptr (see Blood Texture 0-2 in Morrowind.ini)
-            virtual int getBloodTexture (const MWWorld::Ptr& ptr) const;
+            virtual int getBloodTexture (const MWWorld::ConstPtr& ptr) const;
 
             virtual Ptr copyToCell(const ConstPtr &ptr, CellStore &cell) const;