diff --git a/src/pixi/display/DisplayObjectContainer.js b/src/pixi/display/DisplayObjectContainer.js
index 01b566d..2831bfa 100644
--- a/src/pixi/display/DisplayObjectContainer.js
+++ b/src/pixi/display/DisplayObjectContainer.js
@@ -49,7 +49,7 @@
  */
 PIXI.DisplayObjectContainer.prototype.addChild = function(child)
 {
-	if(child.parent != undefined)
+	if(child.parent)
 	{
 		
 		//// COULD BE THIS???