1 files changed, 2 insertions, 0 deletions
diff --git a/docs/sso_mapping_providers.md b/docs/sso_mapping_providers.md
index 4cd3a568f2..abea432343 100644
--- a/docs/sso_mapping_providers.md
+++ b/docs/sso_mapping_providers.md
@@ -138,6 +138,8 @@ A custom mapping provider must specify the following methods:
        * `mxid_localpart` - Required. The mxid localpart of the new user.
        * `displayname` - The displayname of the new user. If not provided, will default to
                          the value of `mxid_localpart`.
+       * `emails` - A list of emails for the new user. If not provided, will
+                    default to an empty list.
 
 ### Default SAML Mapping Provider