diff --git a/src/server/game/Maps/Map.cpp b/src/server/game/Maps/Map.cpp
index b2cdbddaf..4900bd377 100644
--- a/src/server/game/Maps/Map.cpp
+++ b/src/server/game/Maps/Map.cpp
@@ -3063,7 +3063,7 @@ void InstanceMap::CreateInstanceScript(bool load, std::string data, uint32 compl
 
     bool isOtherAI = false;
 
-    sScriptMgr->OnBeforeCreateInstanceScript(this, instance_data, load, data, completedEncounterMask);
+    sScriptMgr->OnBeforeCreateInstanceScript(this, &instance_data, load, data, completedEncounterMask);
 
     if (instance_data)
         isOtherAI = true;
diff --git a/src/server/game/Scripting/ScriptDefines/AllMapScript.cpp b/src/server/game/Scripting/ScriptDefines/AllMapScript.cpp
index e35700a12..c778b8fff 100644
--- a/src/server/game/Scripting/ScriptDefines/AllMapScript.cpp
+++ b/src/server/game/Scripting/ScriptDefines/AllMapScript.cpp
@@ -279,7 +279,7 @@ void ScriptMgr::OnMapUpdate(Map* map, uint32 diff)
     });
 }
 
-void ScriptMgr::OnBeforeCreateInstanceScript(InstanceMap* instanceMap, InstanceScript* instanceData, bool load, std::string data, uint32 completedEncounterMask)
+void ScriptMgr::OnBeforeCreateInstanceScript(InstanceMap* instanceMap, InstanceScript** instanceData, bool load, std::string data, uint32 completedEncounterMask)
 {
     ExecuteScript<AllMapScript>([&](AllMapScript* script)
     {
diff --git a/src/server/game/Scripting/ScriptDefines/AllMapScript.h b/src/server/game/Scripting/ScriptDefines/AllMapScript.h
index f97198866..77479fc1b 100644
--- a/src/server/game/Scripting/ScriptDefines/AllMapScript.h
+++ b/src/server/game/Scripting/ScriptDefines/AllMapScript.h
@@ -51,7 +51,7 @@ public:
      * @param data Contains information about the instance save data
      * @param completedEncounterMask Contains information about the completed encouter mask
      */
-    virtual void OnBeforeCreateInstanceScript(InstanceMap* /*instanceMap*/, InstanceScript* /*instanceData*/, bool /*load*/, std::string /*data*/, uint32 /*completedEncounterMask*/) { }
+    virtual void OnBeforeCreateInstanceScript(InstanceMap* /*instanceMap*/, InstanceScript** /*instanceData*/, bool /*load*/, std::string /*data*/, uint32 /*completedEncounterMask*/) { }
 
     /**
      * @brief This hook called before destroy instance
diff --git a/src/server/game/Scripting/ScriptMgr.h b/src/server/game/Scripting/ScriptMgr.h
index b767487a2..15fb7d4fa 100644
--- a/src/server/game/Scripting/ScriptMgr.h
+++ b/src/server/game/Scripting/ScriptMgr.h
@@ -572,7 +572,7 @@ public: /* AllGameobjectScript */
     void OnGameObjectSaveToDB(GameObject* go);
 
 public: /* AllMapScript */
-    void OnBeforeCreateInstanceScript(InstanceMap* instanceMap, InstanceScript* instanceData, bool load, std::string data, uint32 completedEncounterMask);
+    void OnBeforeCreateInstanceScript(InstanceMap* instanceMap, InstanceScript** instanceData, bool load, std::string data, uint32 completedEncounterMask);
     void OnDestroyInstance(MapInstanced* mapInstanced, Map* map);
 
 public: /* BGScript */