1 files changed, 2 insertions, 1 deletions
diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml
index ef25a3175f..d634fd8ff5 100644
--- a/docs/sample_config.yaml
+++ b/docs/sample_config.yaml
@@ -1948,7 +1948,8 @@ 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
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