diff --git a/public/js/icinga/loader.js b/public/js/icinga/loader.js
index 1de675a09..f038dc7c8 100644
--- a/public/js/icinga/loader.js
+++ b/public/js/icinga/loader.js
@@ -643,7 +643,7 @@
                     this.loadUrl(parts.shift(), $('#col2'));
                 } else {
                     if ($target.attr('id') === 'col2') { // TODO: multicol
-                        if ($target.data('icingaUrl').split('?')[0] === url.split('?')[0]) {
+                        if (($target.data('icingaUrl') || '').split('?')[0] === url.split('?')[0]) {
                             // Don't do anything in this case
                         } else if ($('#col1').data('icingaUrl').split('?')[0] === url.split('?')[0]) {
                             icinga.ui.layout1col();