diff --git a/core/modules/taxonomy/taxonomy.module b/core/modules/taxonomy/taxonomy.module
index 379de71..24ef2c9 100644
--- a/core/modules/taxonomy/taxonomy.module
+++ b/core/modules/taxonomy/taxonomy.module
@@ -295,7 +295,7 @@ function taxonomy_menu() {
   $items['taxonomy/term/%taxonomy_term/edit'] = array(
     'title' => 'Edit',
     'page callback' => 'drupal_get_form',
-    'page arguments' => array('taxonomy_form_term', 2),
+    'page arguments' => array('taxonomy_form_term', 2, NULL),
     'access callback' => 'taxonomy_term_edit_access',
     'access arguments' => array(2),
     'type' => MENU_LOCAL_TASK,