diff --git a/lib/types/tunnelbroker/device-to-tunnelbroker-request-status-types.js b/lib/types/tunnelbroker/device-to-tunnelbroker-request-status-types.js
--- a/lib/types/tunnelbroker/device-to-tunnelbroker-request-status-types.js
+++ b/lib/types/tunnelbroker/device-to-tunnelbroker-request-status-types.js
@@ -27,6 +27,7 @@
   | MessageSentSuccessStatus
   | MessageSentErrorStatus
   | MessageSentInvalidRequestStatus
+  | MessageSentUnauthenticatedStatus
   | MessageSentSerializationErrorStatus;
 
 const messageSentStatusValidator = t.union([