diff --git a/lib/web/prototype/prototype.js b/lib/web/prototype/prototype.js
index 24118875dce94..295d570f4de9e 100644
--- a/lib/web/prototype/prototype.js
+++ b/lib/web/prototype/prototype.js
@@ -2205,7 +2205,7 @@ Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
 
   function remove(element) {
     element = $(element);
-    element.parentNode.removeChild(element);
+    element.parentNode && element.parentNode.removeChild(element);
     return element;
   }