diff -u includes/batch.inc includes/batch.inc
--- includes/batch.inc	19 Oct 2009 12:20:09 -0000
+++ includes/batch.inc	19 Oct 2009 23:09:22 -0000
@@ -208,7 +208,7 @@
     $url_options['query'] = array('id' => $batch['id'], 'op' => $new_op);
   }
   
-  $url = url($batch['url'], $batch['url_options']);
+  $url = url($batch['url'], $url_options);
   drupal_add_html_head('<meta http-equiv="Refresh" content="0; URL=' . $url . '">');
 
   return theme('progress_bar', array('percent' => $percentage, 'message' => $message));