diff --git a/lib/classes/ActionMenu.php b/lib/classes/ActionMenu.php
index 722f44deaf18fc86c922c5b842e554f0bdbdd602..c72b757a20ae8fa1d107d86a8eac9c10e014fcb1 100644
--- a/lib/classes/ActionMenu.php
+++ b/lib/classes/ActionMenu.php
@@ -285,7 +285,7 @@ class ActionMenu
     protected function getKeyForIndex($index)
     {
         foreach ($this->actions as $key => $value) {
-            if ($value['index'] === $index) {
+            if (!empty($value['index']) && $value['index'] === $index) {
                 return $key;
             }
         }