diff --git a/book/forms.rst b/book/forms.rst
index 996fb877453..2aab3af5d7e 100644
--- a/book/forms.rst
+++ b/book/forms.rst
@@ -1188,7 +1188,7 @@ type. Create a constructor to your form type to receive the service::
     {
         private $myService;
 
-        public function __construct(MyService $mySevice)
+        public function __construct(MyService $myService)
         {
             $this->myService = $myService;
         }