diff --git a/Search/PersonSearch.php b/Search/PersonSearch.php
index 0c9d0eab4..e94c28079 100644
--- a/Search/PersonSearch.php
+++ b/Search/PersonSearch.php
@@ -283,7 +283,7 @@ class PersonSearch extends AbstractSearch implements ContainerAwareInterface,
 
             foreach($grams as $key => $gram) {
                 $qb->andWhere($qb->expr()
-                      ->like('UNACCENT(LOWER(CONCAT(p.firstName, \' \', p.lastName)))', ':default_'.$key))
+                      ->like('p.fullnameCanonical', 'UNACCENT(LOWER(:default_'.$key.'))'))
                       ->setParameter('default_'.$key, '%'.$gram.'%');
             }
         }