diff --git a/3.1.-sharee-JSON-defaults.md b/3.1.-sharee-JSON-defaults.md
index 123a492..cdf2d16 100644
--- a/3.1.-sharee-JSON-defaults.md
+++ b/3.1.-sharee-JSON-defaults.md
@@ -3,7 +3,7 @@
 | key          | Required | Format   | Comment                                           |
 | ------------------ | -------- | -------- | ------------------------------------------------- |
 | user_id            | +        | text     | returns user_id email-address                     |
-| user_group         | +        | array     |  user group describes user registered bike fleets |
+| user_group         | o        | array     |  user group describes user registered bike fleets |
 | user_tour         | o        | array     |  user tour describes registered service tour |
 | debuglevel         | o        | text      | returns user specified debuglevel for development |
 | response           | +        | text     | return request value                              |