diff --git a/API-Users.md b/API-Users.md
index 1a16f69..ffa8a86 100644
--- a/API-Users.md
+++ b/API-Users.md
@@ -54,6 +54,7 @@ This will create a native user.
 | code | result |
 | --- | --- |
 | 201 | Everything was successful, user has been created |
+| 400 | If type is invalid |
 | 409 | A user with that name already exists |
 | 422 | One of the required fields is missing |