diff --git a/book/routing.rst b/book/routing.rst
index 09ebf2d94d8..dd69eb1ba9f 100644
--- a/book/routing.rst
+++ b/book/routing.rst
@@ -1026,7 +1026,11 @@ instead of simply ``/hello/{name}``:
         use Symfony\Component\Routing\RouteCollection;
 
         $collection = new RouteCollection();
-        $collection->addCollection($loader->import("@AcmeHelloBundle/Resources/config/routing.php"), '/admin');
+
+        $acmeHello = $loader->import("@AcmeHelloBundle/Resources/config/routing.php");
+        $acmeHello->setPrefix('/admin');
+
+        $collection->addCollection($acmeHello);
 
         return $collection;
 
diff --git a/cookbook/routing/service_container_parameters.rst b/cookbook/routing/service_container_parameters.rst
index 8b6d100e264..d7dbd5a6199 100644
--- a/cookbook/routing/service_container_parameters.rst
+++ b/cookbook/routing/service_container_parameters.rst
@@ -75,7 +75,7 @@ in your container:
 
     .. code-block:: php
 
-        # app/config/config.php
+        // app/config/config.php
         $container->setParameter('acme_demo.locales', 'en|es');
 
 You can also use a parameter to define your route path (or part of your