diff --git a/src/flightlog_fielddefs.js b/src/flightlog_fielddefs.js
index 3134a392..5885140f 100644
--- a/src/flightlog_fielddefs.js
+++ b/src/flightlog_fielddefs.js
@@ -141,6 +141,7 @@ export const FLIGHT_LOG_FLIGHT_MODE_NAME_POST_4_5 = makeReadOnly([
   "MAG",
   "ALTHOLD",
   "HEADFREE",
+  "CHIRP",
   "PASSTHRU",
   "FAILSAFE",
   "POSHOLD",