diff --git a/Common/LuaBindings.h b/Common/LuaBindings.h
index 3ce1d041dc9f384f5b968838c5f783500007699e..c94c75f3b1f2c04707387742c94d5670bb2daffc 100644
--- a/Common/LuaBindings.h
+++ b/Common/LuaBindings.h
@@ -611,6 +611,7 @@ public:
     lua_State *L = _b->L;
     _className=name;
     _constructor=NULL;
+    _parent=NULL;
 
     // there are 3 tables involved :
     // methods : the table of the C++ functions we bind (exept constructor)