diff --git a/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php b/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php
index 9158f7b6b..f85aedfaf 100644
--- a/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php
+++ b/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php
@@ -1632,7 +1632,7 @@ class BasicEntityPersister implements EntityPersister
      * @param string     $field
      * @param array|null $assoc
      *
-     * @return array
+     * @return string[]
      *
      * @throws \Doctrine\ORM\ORMException
      */