diff --git a/demos/accordion/sortable.html b/demos/accordion/sortable.html
index 05da11310..82e119bb4 100644
--- a/demos/accordion/sortable.html
+++ b/demos/accordion/sortable.html
@@ -14,6 +14,7 @@
 		$("#accordion h3").click(function(event) {
 			if (stop) {
 				event.stopImmediatePropagation();
+				event.preventDefault();
 				stop = false;
 			}
 		});