diff --git a/src/Extend/Notification.php b/src/Extend/Notification.php
index 141f9aeb0..c40dd7274 100644
--- a/src/Extend/Notification.php
+++ b/src/Extend/Notification.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
 namespace Flarum\Extend;
 
 use Flarum\Extension\Extension;