diff --git a/libraries/RC_Channel/RC_Channel.cpp b/libraries/RC_Channel/RC_Channel.cpp
index 2fe902814aa8f..35cbf9577ff3d 100644
--- a/libraries/RC_Channel/RC_Channel.cpp
+++ b/libraries/RC_Channel/RC_Channel.cpp
@@ -510,7 +510,9 @@ void RC_Channel::init_aux_function(const aux_func_t ch_option, const AuxSwitchPo
     case AUX_FUNC::MOUNT2_PITCH:
     case AUX_FUNC::MOUNT2_YAW:
         break;
+#if HAL_ADSB_ENABLED
     case AUX_FUNC::AVOID_ADSB:
+#endif
     case AUX_FUNC::AVOID_PROXIMITY:
     case AUX_FUNC::FENCE:
     case AUX_FUNC::GPS_DISABLE:
@@ -1021,9 +1023,11 @@ bool RC_Channel::do_aux_function(const aux_func_t ch_option, const AuxSwitchPos
         do_aux_function_mission_reset(ch_flag);
         break;
 
+#if HAL_ADSB_ENABLED
     case AUX_FUNC::AVOID_ADSB:
         do_aux_function_avoid_adsb(ch_flag);
         break;
+#endif
 
     case AUX_FUNC::FFT_NOTCH_TUNE:
         do_aux_function_fft_notch_tune(ch_flag);