diff --git a/lib/Doctrine/ORM/Tools/Pagination/Paginator.php b/lib/Doctrine/ORM/Tools/Pagination/Paginator.php
index b9e8c5298..ecace32f6 100755
--- a/lib/Doctrine/ORM/Tools/Pagination/Paginator.php
+++ b/lib/Doctrine/ORM/Tools/Pagination/Paginator.php
@@ -178,7 +178,7 @@ class Paginator implements \Countable, \IteratorAggregate
                 return new \ArrayIterator(array());
             }
 
-            $whereInQuery->setHint(Query::HINT_CUSTOM_TREE_WALKERS, array('Doctrine\ORM\Tools\Pagination\WhereInWalker'));
+            $this->appendTreeWalker($whereInQuery, 'Doctrine\ORM\Tools\Pagination\WhereInWalker');
             $whereInQuery->setHint(WhereInWalker::HINT_PAGINATOR_ID_COUNT, count($ids));
             $whereInQuery->setFirstResult(null)->setMaxResults(null);
             $whereInQuery->setParameter(WhereInWalker::PAGINATOR_ID_ALIAS, $ids);