diff --git a/phpBB/phpbb/db/migration/data/v400/add_audio_files_attachment_group.php b/phpBB/phpbb/db/migration/data/v400/add_audio_files_attachment_group.php
index 0150f45117..d6932e6a92 100644
--- a/phpBB/phpbb/db/migration/data/v400/add_audio_files_attachment_group.php
+++ b/phpBB/phpbb/db/migration/data/v400/add_audio_files_attachment_group.php
@@ -15,7 +15,7 @@ namespace phpbb\db\migration\data\v400;
 
 class add_audio_files_attachment_group extends \phpbb\db\migration\migration
 {
-	static public function depends_on()
+	public static function depends_on()
 	{
 		return ['\phpbb\db\migration\data\v400\dev'];
 	}