diff --git a/ArduCopter/RC_Channel.cpp b/ArduCopter/RC_Channel.cpp
index d146c3b26a..fb585e970a 100644
--- a/ArduCopter/RC_Channel.cpp
+++ b/ArduCopter/RC_Channel.cpp
@@ -73,7 +73,6 @@ void RC_Channel_Copter::init_aux_function(const aux_func_t ch_option, const aux_
     case AUX_FUNC::ATTCON_FEEDFWD:
     case AUX_FUNC::ATTCON_ACCEL_LIM:
     case AUX_FUNC::MOTOR_INTERLOCK:
-    case AUX_FUNC::AVOID_ADSB:
     case AUX_FUNC::PRECISION_LOITER:
     case AUX_FUNC::INVERTED:
     case AUX_FUNC::WINCH_ENABLE:
@@ -366,19 +365,6 @@ void RC_Channel_Copter::do_aux_function(const aux_func_t ch_option, const aux_sw
 #endif
             break;
 
-        case AUX_FUNC::AVOID_ADSB:
-#if ADSB_ENABLED == ENABLED
-            // enable or disable AP_Avoidance
-            if (ch_flag == HIGH) {
-                copter.avoidance_adsb.enable();
-                AP::logger().Write_Event(LogEvent::AVOIDANCE_ADSB_ENABLE);
-            } else {
-                copter.avoidance_adsb.disable();
-                AP::logger().Write_Event(LogEvent::AVOIDANCE_ADSB_DISABLE);
-            }
-#endif
-            break;
-
         case AUX_FUNC::PRECISION_LOITER:
 #if PRECISION_LANDING == ENABLED && MODE_LOITER_ENABLED == ENABLED
             switch (ch_flag) {