diff --git a/components/serializer.rst b/components/serializer.rst
index fb9b06e8362..0e891cc961c 100644
--- a/components/serializer.rst
+++ b/components/serializer.rst
@@ -1722,7 +1722,7 @@ context option::
         }
     }
 
-    $normalizer = new ObjectNormalizer($classMetadataFactory);
+    $normalizer = new ObjectNormalizer();
     $serializer = new Serializer([$normalizer]);
 
     $data = $serializer->denormalize(