diff --git a/apps/openmw/mwscript/miscextensions.cpp b/apps/openmw/mwscript/miscextensions.cpp
index 3d1978d625..8d592f29c6 100644
--- a/apps/openmw/mwscript/miscextensions.cpp
+++ b/apps/openmw/mwscript/miscextensions.cpp
@@ -1064,7 +1064,13 @@ namespace MWScript
                 runtime.pop();
 
                 const ESM::Spell* spell = MWBase::Environment::get().getWorld()->getStore().get<ESM::Spell>().find (spellId);
-                if (spell && spell->mData.mType != ESM::Spell::ST_Spell && spell->mData.mType != ESM::Spell::ST_Power)
+                if (!spell)
+                {
+                    runtime.getContext().report("spellcasting failed: can not find spell \""+spellId+"\"");
+                    return;
+                }
+
+                if (spell->mData.mType != ESM::Spell::ST_Spell && spell->mData.mType != ESM::Spell::ST_Power)
                 {
                     runtime.getContext().report("spellcasting failed: you can cast only spells and powers.");
                     return;
diff --git a/apps/openmw/mwworld/worldimp.hpp b/apps/openmw/mwworld/worldimp.hpp
index 2f732ef976..536a40468a 100644
--- a/apps/openmw/mwworld/worldimp.hpp
+++ b/apps/openmw/mwworld/worldimp.hpp
@@ -525,7 +525,7 @@ namespace MWWorld
             /// @note throws an exception when invoked on a teleport door
             void activateDoor(const MWWorld::Ptr& door, int state) override;
 
-            void getActorsStandingOn (const MWWorld::ConstPtr& object, std::vector<MWWorld::Ptr> &actors); ///< get a list of actors standing on \a object
+            void getActorsStandingOn (const MWWorld::ConstPtr& object, std::vector<MWWorld::Ptr> &actors) override; ///< get a list of actors standing on \a object
             bool getPlayerStandingOn (const MWWorld::ConstPtr& object) override; ///< @return true if the player is standing on \a object
             bool getActorStandingOn (const MWWorld::ConstPtr& object) override; ///< @return true if any actor is standing on \a object
             bool getPlayerCollidingWith(const MWWorld::ConstPtr& object) override; ///< @return true if the player is colliding with \a object