diff --git a/ArduCopter/ArduCopter.cpp b/ArduCopter/ArduCopter.cpp
index d119d4a632..eebb5a23de 100644
--- a/ArduCopter/ArduCopter.cpp
+++ b/ArduCopter/ArduCopter.cpp
@@ -466,8 +466,10 @@ void Copter::one_hz_loop()
         // check the user hasn't updated the frame orientation
         motors.set_frame_orientation(g.frame_orientation);
 
+#if FRAME_CONFIG != HELI_FRAME
         // set all throttle channel settings
         motors.set_throttle_range(g.throttle_min, channel_throttle->radio_min, channel_throttle->radio_max);
+#endif
     }
 
     // update assigned functions and enable auxiliar servos
diff --git a/ArduCopter/radio.cpp b/ArduCopter/radio.cpp
index 043a794c5b..d16dd7e8e8 100644
--- a/ArduCopter/radio.cpp
+++ b/ArduCopter/radio.cpp
@@ -57,7 +57,9 @@ void Copter::init_rc_out()
     motors.set_update_rate(g.rc_speed);
     motors.set_frame_orientation(g.frame_orientation);
     motors.Init();                                              // motor initialisation
+#if FRAME_CONFIG != HELI_FRAME
     motors.set_throttle_range(g.throttle_min, channel_throttle->radio_min, channel_throttle->radio_max);
+#endif
 
     for(uint8_t i = 0; i < 5; i++) {
         delay(20);