diff --git a/ui/ui.core.js b/ui/ui.core.js
index 492e3a3ea..7e5a238c7 100644
--- a/ui/ui.core.js
+++ b/ui/ui.core.js
@@ -484,7 +484,7 @@ $.ui.mouse = {
 
 		if (this._mouseStarted) {
 			this._mouseStarted = false;
-			this._preventClickEvent = true;
+			this._preventClickEvent = (event.target == this._mouseDownEvent.target);
 			this._mouseStop(event);
 		}