diff --git a/Tests/Fixtures2/RequiredTwice.php b/Tests/Fixtures2/RequiredTwice.php
index 14de3a0..b7558e5 100644
--- a/Tests/Fixtures2/RequiredTwice.php
+++ b/Tests/Fixtures2/RequiredTwice.php
@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Symfony\Component\ErrorHandler\Tests\Fixtures2;
 
 class RequiredTwice