diff --git a/modules/menu.module b/modules/menu.module
index 3e4b77f4a2384fc1bfee83d84a4beeb5ae263ec8..1f94e3b4b6eef310f74dd29eaf906ef25c1e4e7d 100644
--- a/modules/menu.module
+++ b/modules/menu.module
@@ -171,7 +171,7 @@ function menu_disable_item($mid) {
 /**
  * Menu callback; dispatch to the appropriate menu item edit function.
  */
-function menu_edit_item($mid) {
+function menu_edit_item($mid = 0) {
   $op = $_POST['op'];
   $edit = $_POST['edit'];
   $output = '';
diff --git a/modules/menu/menu.module b/modules/menu/menu.module
index 3e4b77f4a2384fc1bfee83d84a4beeb5ae263ec8..1f94e3b4b6eef310f74dd29eaf906ef25c1e4e7d 100644
--- a/modules/menu/menu.module
+++ b/modules/menu/menu.module
@@ -171,7 +171,7 @@ function menu_disable_item($mid) {
 /**
  * Menu callback; dispatch to the appropriate menu item edit function.
  */
-function menu_edit_item($mid) {
+function menu_edit_item($mid = 0) {
   $op = $_POST['op'];
   $edit = $_POST['edit'];
   $output = '';