diff --git a/sw/airborne/booz/booz2_telemetry.h b/sw/airborne/booz/booz2_telemetry.h
index ab26d8228b..80e36b95d7 100644
--- a/sw/airborne/booz/booz2_telemetry.h
+++ b/sw/airborne/booz/booz2_telemetry.h
@@ -97,7 +97,7 @@ extern uint8_t telemetry_mode_Main_DefaultChannel;
 #ifdef USE_RADIO_CONTROL
 #define PERIODIC_SEND_RC(_chan) DOWNLINK_SEND_RC(_chan, RADIO_CONTROL_NB_CHANNEL, radio_control.values)
 #if defined RADIO_CONTROL_KILL_SWITCH
-#define PERIODIC_SEND_BOOZ2_RADIO_CONTROL(_chan, _kill_switch) SEND_BOOZ2_RADIO_CONTROL( _chan, &radio_control.values[RADIO_CONTROL_KILL_SWITCH])
+#define PERIODIC_SEND_BOOZ2_RADIO_CONTROL(_chan) SEND_BOOZ2_RADIO_CONTROL( _chan, &radio_control.values[RADIO_CONTROL_KILL_SWITCH])
 #else /* ! RADIO_CONTROL_KILL_SWITCH */
 #define PERIODIC_SEND_BOOZ2_RADIO_CONTROL(_chan) {			                    \
     int16_t foo = -42;							                    \