diff --git a/public/js/icinga/events.js b/public/js/icinga/events.js
index 49c23437d..1ec7c82be 100644
--- a/public/js/icinga/events.js
+++ b/public/js/icinga/events.js
@@ -413,7 +413,8 @@
             event.preventDefault();
 
             // This is an anchor only
-            if (href.substr(0, 1) === '#' && href.substr(1, 1) !== '!') {
+            if (href.substr(0, 1) === '#' && href.length > 1
+                && href.substr(1, 1) !== '!') {
                 self.handleAnchor(href);
                 return;
             }