diff --git a/ui/jquery.ui.dialog.js b/ui/jquery.ui.dialog.js
index 0183dd80199..5a791d46c0c 100644
--- a/ui/jquery.ui.dialog.js
+++ b/ui/jquery.ui.dialog.js
@@ -101,6 +101,7 @@ $.widget("ui.dialog", {
 							event.keyCode === $.ui.keyCode.ESCAPE ) {
 						self.close( event );
 						event.preventDefault();
+						event.stopPropagation();
 					}
 				})
 				.attr({