--- a/src/pyams_portal/resources/js/portal.js	Mon Aug 27 18:00:14 2018 +0200
+++ b/src/pyams_portal/resources/js/portal.js	Mon Aug 27 18:01:03 2018 +0200
@@ -479,6 +479,9 @@
 
 			editPortlet: function() {
 				return function(portlet) {
+					if (portlet === undefined) {
+						portlet = this;
+					}
 					if (!portlet.hasClass('portlet')) {
 						portlet = portlet.parents('.portlet:first');
 					}