diff --git a/Source/Game/Entities/Creature/Creature.cs b/Source/Game/Entities/Creature/Creature.cs
index 382f16268..a56e9477f 100644
--- a/Source/Game/Entities/Creature/Creature.cs
+++ b/Source/Game/Entities/Creature/Creature.cs
@@ -1521,7 +1521,7 @@ namespace Game.Entities
 
             // then delete any active instances of the creature
             var spawnMap = GetMap().GetCreatureBySpawnIdStore().LookupByKey(m_spawnId);
-            foreach (var creature in spawnMap)
+            foreach (var creature in spawnMap.ToList())
                 creature.AddObjectToRemoveList();
         }