diff --git a/.php_cs.dist b/.php_cs.dist
index cd75923a1..d249ffbe4 100644
--- a/.php_cs.dist
+++ b/.php_cs.dist
@@ -9,6 +9,7 @@ return PhpCsFixer\Config::create()
         'no_unreachable_default_argument_value' => false,
         'braces' => array('allow_single_line_closure' => true),
         'heredoc_to_nowdoc' => false,
+        'dir_constant' => false,
     ))
     ->setRiskyAllowed(true)
     ->setFinder(PhpCsFixer\Finder::create()->in(__DIR__))