diff --git a/libraries/AP_HAL_ChibiOS/Util.cpp b/libraries/AP_HAL_ChibiOS/Util.cpp
index a6c8e58d70..d216ce2063 100644
--- a/libraries/AP_HAL_ChibiOS/Util.cpp
+++ b/libraries/AP_HAL_ChibiOS/Util.cpp
@@ -29,7 +29,9 @@
 #include "sdcard.h"
 #include "shared_dma.h"
 #include <AP_Common/ExpandingString.h>
-
+#if defined(HAL_PWM_ALARM) || HAL_DSHOT_ALARM || HAL_ENABLE_LIBUAVCAN_DRIVERS
+#include <AP_Notify/AP_Notify.h>
+#endif
 #if HAL_ENABLE_SAVE_PERSISTENT_PARAMS
 #include <AP_InertialSensor/AP_InertialSensor.h>
 #endif
@@ -155,7 +157,6 @@ Util::safety_state Util::safety_switch_state(void)
 struct Util::ToneAlarmPwmGroup Util::_toneAlarm_pwm_group = HAL_PWM_ALARM;
 #endif
 
-#if defined(HAL_PWM_ALARM) || HAL_DSHOT_ALARM
 uint8_t  Util::_toneAlarm_types = 0;
 
 bool Util::toneAlarm_init(uint8_t types)
@@ -165,7 +166,13 @@ bool Util::toneAlarm_init(uint8_t types)
     pwmStart(_toneAlarm_pwm_group.pwm_drv, &_toneAlarm_pwm_group.pwm_cfg);
 #endif
     _toneAlarm_types = types;
+
+#if !defined(HAL_PWM_ALARM) && !HAL_DSHOT_ALARM && !HAL_ENABLE_LIBUAVCAN_DRIVERS
+    // Nothing to do
+    return false;
+#else
     return true;
+#endif
 }
 
 void Util::toneAlarm_set_buzzer_tone(float frequency, float volume, uint32_t duration_ms)
@@ -182,7 +189,7 @@ void Util::toneAlarm_set_buzzer_tone(float frequency, float volume, uint32_t dur
 #endif // HAL_PWM_ALARM
 #if HAL_DSHOT_ALARM
     // don't play the motors while flying
-    if (!(_toneAlarm_types & ALARM_DSHOT) || get_soft_armed() || hal.rcout->get_dshot_esc_type() != RCOutput::DSHOT_ESC_BLHELI) {
+    if (!(_toneAlarm_types & AP_Notify::Notify_Buzz_DShot) || get_soft_armed() || hal.rcout->get_dshot_esc_type() != RCOutput::DSHOT_ESC_BLHELI) {
         return;
     }
 
@@ -201,7 +208,6 @@ void Util::toneAlarm_set_buzzer_tone(float frequency, float volume, uint32_t dur
     }
 #endif // HAL_DSHOT_ALARM
 }
-#endif
 
 /*
   set HW RTC in UTC microseconds
diff --git a/libraries/AP_HAL_ChibiOS/Util.h b/libraries/AP_HAL_ChibiOS/Util.h
index 8d403d7abb..93cb575a04 100644
--- a/libraries/AP_HAL_ChibiOS/Util.h
+++ b/libraries/AP_HAL_ChibiOS/Util.h
@@ -59,11 +59,9 @@ public:
     bool get_system_id(char buf[40]) override;
     bool get_system_id_unformatted(uint8_t buf[], uint8_t &len) override;
 
-#if defined(HAL_PWM_ALARM) || HAL_DSHOT_ALARM
     bool toneAlarm_init(uint8_t types) override;
     void toneAlarm_set_buzzer_tone(float frequency, float volume, uint32_t duration_ms) override;
     static uint8_t _toneAlarm_types;
-#endif
 
     // return true if the reason for the reboot was a watchdog reset
     bool was_watchdog_reset() const override;