Index: modules/system/system.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.module,v
retrieving revision 1.668
diff -u -r1.668 system.module
--- modules/system/system.module	22 Feb 2009 17:55:30 -0000	1.668
+++ modules/system/system.module	24 Feb 2009 17:27:40 -0000
@@ -1613,6 +1613,7 @@
         'comment' => array('view', 'insert', 'update', 'delete'),
         'user' => array('view', 'insert', 'update', 'delete', 'login'),
         'taxonomy' => array('insert', 'update', 'delete'),
+        'cron' => array('run'),
       )
     ),
     'system_block_ip_action' => array(