diff --git a/phpBB/develop/create_schema_files.php b/phpBB/develop/create_schema_files.php
index 0cd562b264..db8c883393 100644
--- a/phpBB/develop/create_schema_files.php
+++ b/phpBB/develop/create_schema_files.php
@@ -26,7 +26,8 @@ include($phpbb_root_path . 'common.' . $phpEx);
 
 $classes = $phpbb_container->get('ext.manager')
 	->get_finder()
-	->core_path('phpbb/db/migration/data/')
+	->core_path('phpbb/')
+	->directory('db/migration/data')
 	->get_classes();
 $db_tools = new \phpbb\db\tools($db, true);