diff --git a/course/index.php b/course/index.php
index 1301b09a95d..eb1f5549474 100644
--- a/course/index.php
+++ b/course/index.php
@@ -4,7 +4,6 @@
 
     require_once("../config.php");
     require_once("lib.php");
-    require_once('category_add_form.php');
 
     $categoryedit = optional_param('categoryedit', -1,PARAM_BOOL);
     $delete   = optional_param('delete',0,PARAM_INT);