diff --git a/apps/openmw/mwmechanics/spellcasting.cpp b/apps/openmw/mwmechanics/spellcasting.cpp
index fb473b0db..797c42fe4 100644
--- a/apps/openmw/mwmechanics/spellcasting.cpp
+++ b/apps/openmw/mwmechanics/spellcasting.cpp
@@ -259,7 +259,7 @@ namespace MWMechanics
     }
 
     /// Check if the given affect can be applied to the target. If \a castByPlayer, emits a message box on failure.
-    bool checkEffectTarget (int effectId, const MWWorld::Ptr& target, bool castByPlayer)
+    bool checkEffectTarget (int effectId, const MWWorld::Ptr& target, const MWWorld::Ptr& caster, bool castByPlayer)
     {
         switch (effectId)
         {
@@ -291,8 +291,20 @@ namespace MWMechanics
                     return false;
                 }
                 break;
-        }
+            case ESM::MagicEffect::WaterWalking:
+                if (target.getClass().isPureWaterCreature(target))
+                    return false;
 
+                MWBase::World *world = MWBase::Environment::get().getWorld();
+
+                if (!world->isWaterWalkingCastableOnTarget(target))
+                {
+                    if (castByPlayer && caster == target)
+                        MWBase::Environment::get().getWindowManager()->messageBox ("#{sMagicInvalidEffect}");
+                    return false;
+                }
+                break;
+        }
         return true;
     }
 
@@ -383,23 +395,8 @@ namespace MWMechanics
             }
             else
                 canCastAnEffect = true;
-          
-            if (magicEffect->mIndex == ESM::MagicEffect::WaterWalking)
-            {
-                if (target.getClass().isPureWaterCreature(target))
-                    continue;
-
-                MWBase::World *world = MWBase::Environment::get().getWorld();
-
-                if (!world->isWaterWalkingCastableOnTarget(target))
-                {
-                    if (castByPlayer && caster == target)
-                        MWBase::Environment::get().getWindowManager()->messageBox ("#{sMagicInvalidEffect}");
-                    continue;
-                }
-            }
 
-            if (!checkEffectTarget(effectIt->mEffectID, target, castByPlayer))
+            if (!checkEffectTarget(effectIt->mEffectID, target, caster, castByPlayer))
                 continue;
 
             // caster needs to be an actor for linked effects (e.g. Absorb)