diff --git a/libraries/AP_Vehicle/ModeReason.h b/libraries/AP_Vehicle/ModeReason.h
index c0e431ec84..da5819dd50 100644
--- a/libraries/AP_Vehicle/ModeReason.h
+++ b/libraries/AP_Vehicle/ModeReason.h
@@ -66,4 +66,5 @@ enum class ModeReason : uint8_t {
   LOITER_ALT_REACHED_QLAND = 46,
   LOITER_ALT_IN_VTOL = 47,
   RADIO_FAILSAFE_RECOVERY = 48,
+  QLAND_INSTEAD_OF_RTL = 49,
 };