diff --git a/ArduCopter/heli.cpp b/ArduCopter/heli.cpp
index 309076c95c..1f58ed0b45 100644
--- a/ArduCopter/heli.cpp
+++ b/ArduCopter/heli.cpp
@@ -143,7 +143,7 @@ void Copter::heli_update_rotor_speed_targets()
     // get rotor control method
     uint8_t rsc_control_mode = motors.get_rsc_mode();
 
-    float rsc_control_deglitched = rotor_speed_deglitch_filter.apply((float)g.rc_8.get_control_in()/1000.0f);
+    float rsc_control_deglitched = rotor_speed_deglitch_filter.apply((float)g.rc_8.get_control_in()) * 0.001f;
 
     switch (rsc_control_mode) {
         case ROTOR_CONTROL_MODE_SPEED_PASSTHROUGH: