diff --git a/sw/airborne/firmwares/rotorcraft/autopilot_rc_helpers.h b/sw/airborne/firmwares/rotorcraft/autopilot_rc_helpers.h
index 854e510b74..43482ccb1a 100644
--- a/sw/airborne/firmwares/rotorcraft/autopilot_rc_helpers.h
+++ b/sw/airborne/firmwares/rotorcraft/autopilot_rc_helpers.h
@@ -58,7 +58,6 @@ static inline bool_t rc_attitude_sticks_centered(void)
 }
 
 #ifdef RADIO_KILL_SWITCH
-#warning RADIO_KILL_DEFINED
 static inline bool_t kill_switch_is_on(void)
 {
   if (radio_control.values[RADIO_KILL_SWITCH] < 0) {