diff --git a/delegator/plugins/tasks/page.admin.inc b/delegator/plugins/tasks/page.admin.inc
index 938757502c2214da648980a149fe609358246371..243828332d12cdfa88e8b27434308858aee24040 100644
--- a/delegator/plugins/tasks/page.admin.inc
+++ b/delegator/plugins/tasks/page.admin.inc
@@ -119,6 +119,7 @@ function delegator_page_menu(&$items, $task) {
   // AJAX callbacks for argument modal.
   $items['admin/build/delegator/argument'] = array(
     'page callback' => 'delegator_page_subtask_argument_ajax',
+    'type' => MENU_CALLBACK,
   ) + $base;
 
   // Add menu entries for each subtask