diff --git a/src/drivers/drv_tone_alarm.h b/src/drivers/drv_tone_alarm.h
index cb5fd53a5f..147d7123a4 100644
--- a/src/drivers/drv_tone_alarm.h
+++ b/src/drivers/drv_tone_alarm.h
@@ -147,6 +147,7 @@ enum {
 	TONE_BATTERY_WARNING_SLOW_TUNE,
 	TONE_BATTERY_WARNING_FAST_TUNE,
 	TONE_GPS_WARNING_TUNE,
+	TONE_ARMING_FAILURE_TUNE,
 	TONE_NUMBER_OF_TUNES
 };
 
diff --git a/src/drivers/stm32/tone_alarm/tone_alarm.cpp b/src/drivers/stm32/tone_alarm/tone_alarm.cpp
index f36f2091e3..8ed0de58c6 100644
--- a/src/drivers/stm32/tone_alarm/tone_alarm.cpp
+++ b/src/drivers/stm32/tone_alarm/tone_alarm.cpp
@@ -334,6 +334,7 @@ ToneAlarm::ToneAlarm() :
 	_default_tunes[TONE_BATTERY_WARNING_SLOW_TUNE] = "MBNT100a8";					//battery warning slow
 	_default_tunes[TONE_BATTERY_WARNING_FAST_TUNE] = "MBNT255a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8";	//battery warning fast
 	_default_tunes[TONE_GPS_WARNING_TUNE] = "MFT255L4AAAL1F#";					//gps warning slow
+	_default_tunes[TONE_ARMING_FAILURE_TUNE] = "MFT255L4<<<BAP";
 
 	_tune_names[TONE_STARTUP_TUNE] = "startup";			// startup tune
 	_tune_names[TONE_ERROR_TUNE] = "error";				// ERROR tone
@@ -344,6 +345,7 @@ ToneAlarm::ToneAlarm() :
 	_tune_names[TONE_BATTERY_WARNING_SLOW_TUNE] = "slow_bat";	// battery warning slow
 	_tune_names[TONE_BATTERY_WARNING_FAST_TUNE] = "fast_bat";	// battery warning fast
 	_tune_names[TONE_GPS_WARNING_TUNE] = "gps_warning";	            // gps warning
+	_tune_names[TONE_ARMING_FAILURE_TUNE] = "arming_failure";            //fail to arm
 }
 
 ToneAlarm::~ToneAlarm()