diff --git a/.php_cs b/.php_cs
index 704a939a647..cb7368a52e4 100644
--- a/.php_cs
+++ b/.php_cs
@@ -3,6 +3,7 @@ $finder = Symfony\CS\Finder\DefaultFinder::create()
     ->notName('TestSampleClass10.php')
     ->exclude('demos')
     ->exclude('resources')
+    ->exclude('Class.php')
     ->filter(function (SplFileInfo $file) {
         if (strstr($file->getPath(), 'compatibility')) {
             return false;
diff --git a/tests/.php_cs b/tests/.php_cs
index 8749485f95f..d6aba166369 100644
--- a/tests/.php_cs
+++ b/tests/.php_cs
@@ -1,6 +1,7 @@
 <?php
 $finder = Symfony\CS\Finder\DefaultFinder::create()
     ->notName('TestSampleClass10.php')
+    ->notName('Class.php')
     ->in(__DIR__);
 return Symfony\CS\Config\Config::create()
     ->finder($finder);