1 files changed, 2 insertions, 1 deletions
diff --git a/develop/usage/configuration/homeserver_sample_config.html b/develop/usage/configuration/homeserver_sample_config.html
index 855d059da0..d90d3764cd 100644
--- a/develop/usage/configuration/homeserver_sample_config.html
+++ b/develop/usage/configuration/homeserver_sample_config.html
@@ -2140,7 +2140,8 @@ saml2_config:
 #             localpart_template: Jinja2 template for the localpart of the MXID.
 #                 If this is not set, the user will be prompted to choose their
 #                 own username (see the documentation for the
-#                 'sso_auth_account_details.html' template).
+#                 'sso_auth_account_details.html' template). This template can
+#                 use the 'localpart_from_email' filter.
 #
 #             confirm_localpart: Whether to prompt the user to validate (or
 #                 change) the generated localpart (see the documentation for the