diff --git a/serializer.rst b/serializer.rst
index 1c30ad89c6c..7f2569eb104 100644
--- a/serializer.rst
+++ b/serializer.rst
@@ -1421,7 +1421,7 @@ like:
     .. code-block:: php
 
         // config/services.php
-        namespace Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+        namespace Symfony\Component\DependencyInjection\Loader\Configurator;
 
         use Symfony\Component\Serializer\Normalizer\CustomNormalizer;