diff --git a/tests/static/progressbar.html b/tests/static/progressbar.html
index 7844cd563..6df5a7a5a 100644
--- a/tests/static/progressbar.html
+++ b/tests/static/progressbar.html
@@ -8,7 +8,7 @@
 
 <h1>jQuery UI Progressbar Static Markup Test Page</h1>
 
-<div class="ui-progressbar ui-widget-content ui-corner-all" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="13">
+<div class="ui-progressbar ui-widget ui-widget-content ui-corner-all" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="13">
 	<div class="ui-progressbar-label">13% Completed</div>
 	<div class="ui-progressbar-value ui-state-default ui-corner-left" style="width: 13%;"><span class="ui-progressbar-label">13% Completed</span></div>
 </div>