diff --git a/ROMFS/px4fmu_common/init.d/15001_coax_heli b/ROMFS/px4fmu_common/init.d/15001_coax_heli
index c5db274129..8878e53cb8 100644
--- a/ROMFS/px4fmu_common/init.d/15001_coax_heli
+++ b/ROMFS/px4fmu_common/init.d/15001_coax_heli
@@ -46,14 +46,8 @@ fi
 # use PWM parameters for throttle channel
 set PWM_OUT 34
 set PWM_RATE 400
-set PWM_DISARMED p:PWM_DISARMED
-set PWM_MIN p:PWM_MIN
-set PWM_MAX p:PWM_MAX
 
 # This is the gimbal pass mixer
 set MIXER_AUX pass
 set PWM_AUX_RATE 50
 set PWM_AUX_OUT 1234
-set PWM_AUX_DISARMED 1500
-set PWM_AUX_MIN 1000
-set PWM_AUX_MAX 2000