diff --git a/blcrack/cracker/il2cpp.hpp b/blcrack/cracker/il2cpp.hpp
index 80fb496ae..5cf9dfe26 100644
--- a/blcrack/cracker/il2cpp.hpp
+++ b/blcrack/cracker/il2cpp.hpp
@@ -9,7 +9,9 @@ struct UnityEngine_Component_Fields : UnityEngine_Object_Fields {};
 
 struct UnityEngine_Behaviour_Fields : UnityEngine_Component_Fields {};
 
-struct UnityEngine_MonoBehaviour_Fields : UnityEngine_Behaviour_Fields {};
+struct UnityEngine_MonoBehaviour_Fields : UnityEngine_Behaviour_Fields {
+    void* m_CancellationTokenSource; // struct System_Threading_CancellationTokenSource_o* m_CancellationTokenSource;
+};
 
 struct LuaInterface_LuaStatePtr_Fields {
     intptr_t L;