Index: includes/menu.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/menu.inc,v
retrieving revision 1.358
diff -u -r1.358 menu.inc
--- includes/menu.inc	1 Nov 2009 23:02:13 -0000	1.358
+++ includes/menu.inc	7 Nov 2009 11:38:55 -0000
@@ -2212,7 +2212,7 @@
   // a given item came from.
   $callbacks = array();
   foreach (module_implements('menu') as $module) {
-    $router_items = call_user_func($module . '_menu');
+    $router_items = module_invoke($module, 'menu');
     if (isset($router_items) && is_array($router_items)) {
       foreach (array_keys($router_items) as $path) {
         $router_items[$path]['module'] = $module;