diff --git a/.php-cs-fixer.php b/.php-cs-fixer.php
index 7cc7ec3d..1df907de 100644
--- a/.php-cs-fixer.php
+++ b/.php-cs-fixer.php
@@ -28,7 +28,7 @@
 
 return $config
     ->setRules([
-        '@PER' => true,
+        '@PER-CS' => true,
         'declare_strict_types' => true,
         'header_comment' => [
             'comment_type' => 'PHPDoc',