diff --git a/book/forms.rst b/book/forms.rst
index e9da0f9ef12..e2c79ac56f8 100644
--- a/book/forms.rst
+++ b/book/forms.rst
@@ -214,7 +214,7 @@ controller::
             ->add('dueDate', 'date')
             ->getForm();
 
-        if ($request->getMethod() == 'POST') {
+        if ($request->isMethod('post')) {
             $form->bind($request);
 
             if ($form->isValid()) {