diff --git a/theme/yui_combo.php b/theme/yui_combo.php
index 9442d395e47..9e4e536e5ab 100644
--- a/theme/yui_combo.php
+++ b/theme/yui_combo.php
@@ -157,7 +157,6 @@ while (count($parts)) {
                 'event-mouseenter',
                 'event-key',
                 'event-outside',
-                'event-autohide',
                 'event-focus',
                 'classnamemanager',
                 'widget-base',