diff --git a/book/page_creation.rst b/book/page_creation.rst
index 9e649356024..e317c75deff 100644
--- a/book/page_creation.rst
+++ b/book/page_creation.rst
@@ -104,7 +104,7 @@ Just add a second method to ``LuckyController``::
     // src/AppBundle/Controller/LuckyController.php
     // ...
 
-    class LuckyController
+    class LuckyController extends Controller
     {
         // ...
 
@@ -137,7 +137,7 @@ You can even shorten this with the handy :class:`Symfony\\Component\\HttpFoundat
     // --> don't forget this new use statement
     use Symfony\Component\HttpFoundation\JsonResponse;
 
-    class LuckyController
+    class LuckyController extends Controller
     {
         // ...
 
@@ -170,7 +170,7 @@ at the end:
         // src/AppBundle/Controller/LuckyController.php
         // ...
 
-        class LuckyController
+        class LuckyController extends Controller
         {
             /**
              * @Route("/lucky/number/{count}")
@@ -224,7 +224,7 @@ The best part is that you can access this value and use it in your controller::
     // src/AppBundle/Controller/LuckyController.php
     // ...
 
-    class LuckyController
+    class LuckyController extends Controller
     {
 
         /**