diff --git a/src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml b/src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml
index 5088554ff1..c5bc8cf5db 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Resources/config/form.xml
@@ -93,6 +93,7 @@
The "%service_id%" service is deprecated since Symfony 3.1 and will be removed in 4.0.
+