diff --git a/configuration/env_var_processors.rst b/configuration/env_var_processors.rst
index ceca80957b8..f3d76b19c41 100644
--- a/configuration/env_var_processors.rst
+++ b/configuration/env_var_processors.rst
@@ -124,7 +124,7 @@ Symfony provides the following env var processors:
true
-
+
.. code-block:: php