diff --git a/book/service_container.rst b/book/service_container.rst
index 66eb38641be..5bd4a5ce7e3 100644
--- a/book/service_container.rst
+++ b/book/service_container.rst
@@ -431,8 +431,8 @@ invokes the service container extension inside the FrameworkBundle:
         # app/config/config.yml
         framework:
             secret:          xxxxxxxxxx
-            form:            true
-            csrf_protection: true
+            form:
+                csrf_protection: ~
             router:        { resource: "%kernel.root_dir%/config/routing.yml" }
             # ...
 
diff --git a/quick_tour/the_architecture.rst b/quick_tour/the_architecture.rst
index e9b9816fc21..f928a424a13 100644
--- a/quick_tour/the_architecture.rst
+++ b/quick_tour/the_architecture.rst
@@ -151,8 +151,8 @@ or PHP. Have a look at this sample of the default Symfony configuration:
         router:
             resource: "%kernel.root_dir%/config/routing.yml"
             strict_requirements: "%kernel.debug%"
-        form:            true
-        csrf_protection: true
+        form:
+            csrf_protection: ~
         validation:      { enable_annotations: true }
         templating:      { engines: ['twig'] }
         default_locale:  "%locale%"