diff --git a/cocos/renderer/CCRenderState.h b/cocos/renderer/CCRenderState.h
index c26cd3bc48..fd2c20763d 100644
--- a/cocos/renderer/CCRenderState.h
+++ b/cocos/renderer/CCRenderState.h
@@ -84,6 +84,8 @@ public:
      * Returns the topmost RenderState in the hierarchy below the given RenderState.
      */
     RenderState* getTopmost(RenderState* below);
+    
+    void setParent(RenderState* parent) { _parent = parent; }
 
     enum Blend
     {