diff --git a/ietf/utils/jsonlogger.py b/ietf/utils/jsonlogger.py
index c383ba310f2..b02cd7af2b3 100644
--- a/ietf/utils/jsonlogger.py
+++ b/ietf/utils/jsonlogger.py
@@ -31,4 +31,4 @@ def add_fields(self, log_record, record, message_dict):
         log_record.setdefault("cf_connecting_ip", record.args["{cf-connecting-ip}i"])
         log_record.setdefault("cf_connecting_ipv6", record.args["{cf-connecting-ipv6}i"])
         log_record.setdefault("cf_ray", record.args["{cf-ray}i"])
-        log_record.setdefault("is_authenticated", record.args["{x-datatracker-is-authenticated}i"])
+        log_record.setdefault("is_authenticated", record.args["{x-datatracker-is-authenticated}o"])