diff --git a/extensions/lock/migrations/2015_02_24_000000_add_locked_to_discussions.php b/extensions/lock/migrations/2015_02_24_000000_add_locked_to_discussions.php
index 58f97771c..e9922e132 100644
--- a/extensions/lock/migrations/2015_02_24_000000_add_locked_to_discussions.php
+++ b/extensions/lock/migrations/2015_02_24_000000_add_locked_to_discussions.php
@@ -1,5 +1,4 @@
 <?php
-
 /*
  * This file is part of Flarum.
  *
@@ -9,6 +8,8 @@
  * file that was distributed with this source code.
  */
 
+namespace Flarum\Migrations\Lock;
+
 use Illuminate\Database\Schema\Blueprint;
 use Flarum\Migrations\Migration;