diff --git a/components/routing.rst b/components/routing.rst
index f6af13d1fac..3f78392ee30 100644
--- a/components/routing.rst
+++ b/components/routing.rst
@@ -194,6 +194,7 @@ Normally you can pass the values from the ``$_SERVER`` variable to populate the
 :class:`Symfony\\Component\\Routing\\RequestContext` in a shortcut::
 
     use Symfony\Component\HttpFoundation\Request;
+    use Symfony\Component\Routing\RequestContext;
 
     $context = new RequestContext();
     $context->fromRequest(Request::createFromGlobals());
@@ -206,6 +207,9 @@ to find a route that fits the given request you can also build a URL from
 a certain route::
 
     use Symfony\Component\Routing\Generator\UrlGenerator;
+    use Symfony\Component\Routing\RequestContext;
+    use Symfony\Component\Routing\Route;
+    use Symfony\Component\Routing\RouteCollection;
 
     $routes = new RouteCollection();
     $routes->add('show_post', new Route('/show/{slug}'));
@@ -292,6 +296,7 @@ There is also the :class:`Symfony\\Component\\Routing\\Loader\\ClosureLoader`, w
 calls a closure and uses the result as a :class:`Symfony\\Component\\Routing\\RouteCollection`::
 
     use Symfony\Component\Routing\Loader\ClosureLoader;
+    use Symfony\Component\Routing\RouteCollection;
 
     $closure = function () {
         return new RouteCollection();