diff --git a/rclone/config.yml b/rclone/config.yml
index 0ea923c..ce9bebd 100755
--- a/rclone/config.yml
+++ b/rclone/config.yml
@@ -45,8 +45,8 @@ schema:
     cron: str
     delete: bool
   credentials:
-    username: str
-    password: str
+    username: str?
+    password: str?
   tls:
     ssl: bool
     certfile: str