diff --git a/cocos2dx/base_nodes/CCNode.cpp b/cocos2dx/base_nodes/CCNode.cpp
index 79516d6f8a..220bbe564e 100644
--- a/cocos2dx/base_nodes/CCNode.cpp
+++ b/cocos2dx/base_nodes/CCNode.cpp
@@ -126,6 +126,8 @@ Node::Node(void)
 , _isTransitionFinished(false)
 , _updateScriptHandler(0)
 , _componentContainer(NULL)
+, _eventPriority(0)
+, _oldEventPriority(0)
 {
     // set default scheduler and actionManager
     Director *director = Director::getInstance();
@@ -1307,9 +1309,11 @@ void Node::dissociateEventListener(EventListener* listener)
 
 void Node::removeAllEventListeners()
 {
+    auto dispatcher = EventDispatcher::getInstance();
+    
     for (auto& listener : _eventlisteners)
     {
-        EventDispatcher::getInstance()->removeEventListener(listener);
+        dispatcher->removeEventListener(listener);
     }
 }
 
diff --git a/cocos2dx/base_nodes/CCNode.h b/cocos2dx/base_nodes/CCNode.h
index 66f503878d..8c7032675d 100644
--- a/cocos2dx/base_nodes/CCNode.h
+++ b/cocos2dx/base_nodes/CCNode.h
@@ -1464,8 +1464,9 @@ protected:
     
     ComponentContainer *_componentContainer;        ///< Dictionary of components
 
-    int _eventPriority;
-    static int _globalEventPriorityIndex;
+    int _eventPriority;           ///< The scene graph based priority of event listener.
+    int _oldEventPriority;        ///< The old scene graph based priority of event listener.
+    static int _globalEventPriorityIndex;    ///< The index of global event priority.
 };
 
 //#pragma mark - NodeRGBA