diff --git a/js/layouts/tab-container/tab-container.js b/js/layouts/tab-container/tab-container.js
index ff5b0746b4..73b687e384 100644
--- a/js/layouts/tab-container/tab-container.js
+++ b/js/layouts/tab-container/tab-container.js
@@ -253,9 +253,9 @@ $(function()
 		        // Prevent anchor default behaviour
 		        oEvent.preventDefault();
 
-		        if (oExtraTabTogglerElem.attr('aria-disabled') === true) {
+		        if (oExtraTabTogglerElem.attr('aria-disabled') === 'true') {
 		            // Corresponding tab is disabled, do nothing			
-		            oEvent.preventStopPropagation();
+		            oEvent.stopPropagation();
 		            return;
 		        }			
 		        // Trigger click event on real tab toggler (the hidden one)