diff --git a/src/audio_avr.h b/src/audio_avr.h
index f739cda08..6290ac4b7 100644
--- a/src/audio_avr.h
+++ b/src/audio_avr.h
@@ -136,8 +136,8 @@ void audioDefevent(uint8_t e);
 #define AUDIO_INACTIVITY()       VOICE_AUDIO_BUZZER(PUSH_SYSTEM_PROMPT(AU_INACTIVITY), audioDefevent(AU_INACTIVITY), beep(3))
 #define AUDIO_ERROR_MESSAGE(e)   VOICE_AUDIO_BUZZER(PUSH_SYSTEM_PROMPT((e)), audioDefevent(AU_ERROR), beep(4))
 #define AUDIO_TIMER_MINUTE(t)    VOICE_AUDIO_BUZZER(playDuration(t), audioDefevent(AU_WARNING1), beep(2))
-#define AUDIO_TIMER_30()         VOICE_AUDIO_BUZZER(PUSH_SYSTEM_PROMPT(AU_TIMER_30), audioDefevent(AU_TIMER_30), { beepAgain=2; beep(2); })
-#define AUDIO_TIMER_20()         VOICE_AUDIO_BUZZER(PUSH_SYSTEM_PROMPT(AU_TIMER_20), audioDefevent(AU_TIMER_20), { beepAgain=1; beep(2); })
+#define AUDIO_TIMER_30()         VOICE_AUDIO_BUZZER(PUSH_SYSTEM_PROMPT(AU_TIMER_30+1/*to avoid renumbering*/), audioDefevent(AU_TIMER_30), { beepAgain=2; beep(2); })
+#define AUDIO_TIMER_20()         VOICE_AUDIO_BUZZER(PUSH_SYSTEM_PROMPT(AU_TIMER_20+1/*to avoid renumbering*/), audioDefevent(AU_TIMER_20), { beepAgain=1; beep(2); })
 #define AUDIO_TIMER_LT10(x)      AUDIO_BUZZER(audioDefevent(AU_TIMER_LT10), beep(2))
 #define AUDIO_MIX_WARNING(x)     AUDIO_BUZZER(audioDefevent(AU_MIX_WARNING_1+x-1), beep(1))
 #define AUDIO_POT_STICK_MIDDLE() AUDIO_BUZZER(audioDefevent(AU_POT_STICK_MIDDLE), beep(2))