diff --git a/phpBB/phpbb/db/migration/data/v400/add_mention_settings.php b/phpBB/phpbb/db/migration/data/v400/add_mention_settings.php
index e7355933dd..7aa2588722 100644
--- a/phpBB/phpbb/db/migration/data/v400/add_mention_settings.php
+++ b/phpBB/phpbb/db/migration/data/v400/add_mention_settings.php
@@ -11,7 +11,7 @@
 *
 */
 
-namespace phpbb\db\migration\data\v330;
+namespace phpbb\db\migration\data\v400;
 
 class add_mention_settings extends \phpbb\db\migration\migration
 {