@@ -1279,7 +1279,7 @@ def new_data(args, existing):
 
     authorizations = dict(
         (vhost.name, client.request_domain_challenges(
-            vhost.name, new_authzr_uri=client.directory.new_authz))
+            vhost.name, client.directory.new_authz))
         for vhost in args.vhosts
     )
     if any(supported_challb(auth) is None