diff --git a/modules/backend/classes/Controller.php b/modules/backend/classes/Controller.php
index 515a2786a..31578fb81 100644
--- a/modules/backend/classes/Controller.php
+++ b/modules/backend/classes/Controller.php
@@ -4,6 +4,7 @@ use Lang;
 use View;
 use Flash;
 use Config;
+use Closure;
 use Request;
 use Backend;
 use Session;