diff --git a/reference/constraints/Twig.rst b/reference/constraints/Twig.rst
index 8435c191855..e38b4507d7a 100644
--- a/reference/constraints/Twig.rst
+++ b/reference/constraints/Twig.rst
@@ -24,7 +24,7 @@ Basic Usage
 -----------
 
 Apply the ``Twig`` constraint to validate the contents of any property or the
-returned value of any method:
+returned value of any method::
 
     use Symfony\Bridge\Twig\Validator\Constraints\Twig;