diff --git a/extensions/tags/migrations/2015_10_19_061223_make_slug_unique.php b/extensions/tags/migrations/2015_10_19_061223_make_slug_unique.php
index a892a0005..234f1e0eb 100644
--- a/extensions/tags/migrations/2015_10_19_061223_make_slug_unique.php
+++ b/extensions/tags/migrations/2015_10_19_061223_make_slug_unique.php
@@ -1,4 +1,12 @@
 <?php
+/*
+ * This file is part of Flarum.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
 
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Schema\Builder;