diff --git a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
index a0720e84625..fd6e5965805 100644
--- a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
+++ b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
@@ -3409,6 +3409,11 @@ public function getAssociationNames()
     /**
      * {@inheritDoc}
      *
+     * @param string $assocName
+     *
+     * @return string
+     * @psalm-return class-string
+     *
      * @throws InvalidArgumentException
      */
     public function getAssociationTargetClass($assocName)