diff --git a/lib/Doctrine/ORM/Persisters/JoinedSubclassPersister.php b/lib/Doctrine/ORM/Persisters/JoinedSubclassPersister.php
index 0879785cb..8f2c0b711 100644
--- a/lib/Doctrine/ORM/Persisters/JoinedSubclassPersister.php
+++ b/lib/Doctrine/ORM/Persisters/JoinedSubclassPersister.php
@@ -272,7 +272,7 @@ class JoinedSubclassPersister extends StandardEntityPersister
     public function delete($entity)
     {
         $id = array_combine(
-            $this->_class->identifier,
+            $this->_class->getIdentifierColumnNames(),
             $this->_em->getUnitOfWork()->getEntityIdentifier($entity)
         );