diff --git a/src/Core/Resource/Script/CScriptLayer.h b/src/Core/Resource/Script/CScriptLayer.h
index 12036021..919012c8 100644
--- a/src/Core/Resource/Script/CScriptLayer.h
+++ b/src/Core/Resource/Script/CScriptLayer.h
@@ -111,6 +111,7 @@ public:
 
     // Operators
     CScriptObject* operator[](uint32 Index) { return InstanceByIndex(Index); }
+    const CScriptObject* operator[](uint32 Index) const { return InstanceByIndex(Index); }
 };
 
 #endif // CSCRIPTLAYER_H