diff --git a/components/serializer.rst b/components/serializer.rst
index 7ecdd7cd8da..6c9903e55af 100644
--- a/components/serializer.rst
+++ b/components/serializer.rst
@@ -947,6 +947,7 @@ having unique identifiers::
         'child' => array(
             'id' => 2,
             'child' => '/foos/3',
+        ),
     );
     */