Index: pathauto.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/pathauto/pathauto.module,v
retrieving revision 1.118.2.6
diff -u -p -r1.118.2.6 pathauto.module
--- pathauto.module	17 Oct 2009 17:45:53 -0000	1.118.2.6
+++ pathauto.module	27 Jan 2010 16:32:55 -0000
@@ -101,7 +101,7 @@ function pathauto_token_values($type, $o
           if (module_exists('book') && !empty($object->book['menu_name'])) {
             for ($i = 1; $i < 10; $i++) {
               $second_child = $i + 2;
-              if ($object->book["p$second_child"] === 0) {
+              if ($object->book["p$second_child"] == 0) {
                 $parent_node = db_result(db_query('SELECT link_path FROM {menu_links} WHERE mlid = %d', $object->book["p$i"]));
                 break;
               }