diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
index ba5ab47..1ab585c 100644
--- a/.php-cs-fixer.dist.php
+++ b/.php-cs-fixer.dist.php
@@ -97,6 +97,7 @@
         (new Finder())
             ->in(__DIR__)
             ->exclude(['vendor', 'var', 'coverage', '.phpunit.cache'])
+            ->notName('reference.php')
             ->notPath('demo/symfony8/config/reference.php')
             ->notName('composer.json')
     );