diff --git a/radio/src/audio_avr.h b/radio/src/audio_avr.h
index ba5e9653a..6302c13f4 100644
--- a/radio/src/audio_avr.h
+++ b/radio/src/audio_avr.h
@@ -141,7 +141,7 @@ void audioDefevent(uint8_t e);
 #define AUDIO_TIMER_LT10(m, x)   AUDIO_BUZZER(audioDefevent(AU_TIMER_LT10), beep(2))
 #define AUDIO_TIMER_00(m)        AUDIO_BUZZER(audioDefevent(AU_TIMER_00), beep(3))
 #define AUDIO_MIX_WARNING(x)     AUDIO_BUZZER(audioDefevent(AU_MIX_WARNING_1+x-1), beep(1))
-#define AUDIO_POT_MIDDLE(x)      AUDIO_BUZZER(audioDefevent(AU_POT_MIDDLE), beep(2))
+#define AUDIO_POT_MIDDLE()       AUDIO_BUZZER(audioDefevent(AU_POT_MIDDLE), beep(2))
 #define AUDIO_VARIO_UP()         audioDefevent(AU_KEYPAD_UP)
 #define AUDIO_VARIO_DOWN()       audioDefevent(AU_KEYPAD_DOWN)
 #define AUDIO_TRIM_MIDDLE(f)     AUDIO_BUZZER(audio.event(AU_TRIM_MIDDLE, f), beep(2))
diff --git a/radio/src/buzzer.h b/radio/src/buzzer.h
index 4f89e78cb..cbb4d5717 100644
--- a/radio/src/buzzer.h
+++ b/radio/src/buzzer.h
@@ -87,7 +87,7 @@ void beep(uint8_t val);
   #define AUDIO_WARNING1()         beep(3)
   #define AUDIO_ERROR()            beep(4)
   #define AUDIO_MIX_WARNING(x)     beep(1)
-  #define AUDIO_POT_MIDDLE(x)      beep(2)
+  #define AUDIO_POT_MIDDLE()       beep(2)
   #define AUDIO_TIMER_LT10(m, x)   beep(2)
   #define AUDIO_TIMER_00(m)        beep(3)
   #define AUDIO_VARIO_UP()         _beep(1)