diff --git a/core/modules/forum/forum.module b/core/modules/forum/forum.module
index de200cd..be38123 100644
--- a/core/modules/forum/forum.module
+++ b/core/modules/forum/forum.module
@@ -94,7 +94,6 @@ function forum_theme() {
     ),
     'forum_form' => array(
       'render element' => 'form',
-      'file' => 'forum.admin.inc',
     ),
   );
 }