diff --git a/service_container.rst b/service_container.rst
index 7c4ae87b117..d918f590f7f 100644
--- a/service_container.rst
+++ b/service_container.rst
@@ -331,7 +331,8 @@ Now, this new service is ready to be used. In a controller, for example,
 you can type-hint the new ``SiteUpdateManager`` class and use it::
 
     // src/Controller/SiteController.php
-
+    namespace App\Controller;
+    
     // ...
     use App\Updates\SiteUpdateManager;