diff --git a/controllers/archiveController.php b/controllers/archiveController.php
index 0db6d04..7131ea4 100644
--- a/controllers/archiveController.php
+++ b/controllers/archiveController.php
@@ -33,5 +33,4 @@ $app->get('{repo}/{format}ball/{branch}', function($repo, $format, $branch) use
 })->assert('format', '(zip|tar)')
   ->assert('repo', '[\w-._]+')
   ->assert('branch', '[\w-._]+')
-  ->value('format', 'zip')
   ->bind('archive');