Index: modules/field_ui/field_ui.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/field_ui/field_ui.module,v
retrieving revision 1.2
diff -u -r1.2 field_ui.module
--- modules/field_ui/field_ui.module	21 Aug 2009 02:54:46 -0000	1.2
+++ modules/field_ui/field_ui.module	23 Aug 2009 23:35:46 -0000
@@ -262,7 +262,7 @@
 function field_ui_field_attach_create_bundle($bundle) {
   // When a new bundle is created, the menu needs to be rebuilt to add our
   // menu item tabs.
-  menu_rebuild();
+  variable_set('menu_rebuild_needed', TRUE);
 }
 
 /**