diff --git a/cocos2dx/CCDirector.cpp b/cocos2dx/CCDirector.cpp
index 376d01f084..0de8bf622f 100644
--- a/cocos2dx/CCDirector.cpp
+++ b/cocos2dx/CCDirector.cpp
@@ -585,7 +585,7 @@ void CCDirector::popToRootScene(void)
 void CCDirector::popToSceneStackLevel(int level)
 {
     CCAssert(m_pRunningScene != NULL, "A running Scene is needed");
-    unsigned int c = m_pobScenesStack->count();
+    int c = (int)m_pobScenesStack->count();
 
     // level 0? -> end
     if (level == 0)