diff --git a/main/inc/lib/usermanager.lib.php b/main/inc/lib/usermanager.lib.php
index 952ba1374a..8e1551b805 100755
--- a/main/inc/lib/usermanager.lib.php
+++ b/main/inc/lib/usermanager.lib.php
@@ -3576,7 +3576,7 @@ class UserManager
             if (empty($checkPosition)) {
                 // The session course list doesn't have any position,
                 // then order the course list by course code
-                $list = array_column($myCourseList, 'course_code');
+                $list = array_column($myCourseList, 'code');
                 array_multisort($myCourseList, SORT_ASC, $list);
             }
         }