diff --git a/ROMFS/px4fmu_common/init.d/rc.mc_defaults b/ROMFS/px4fmu_common/init.d/rc.mc_defaults
index d7971adebb..e53c40541f 100644
--- a/ROMFS/px4fmu_common/init.d/rc.mc_defaults
+++ b/ROMFS/px4fmu_common/init.d/rc.mc_defaults
@@ -26,4 +26,3 @@ fi
 set MIXER_AUX pass
 
 set PWM_AUX_OUT 1234
-set PWM_AUX_RATE 50
diff --git a/ROMFS/px4fmu_common/init.d/rc.rover_defaults b/ROMFS/px4fmu_common/init.d/rc.rover_defaults
index 9f93fd61aa..5c8e952bc9 100644
--- a/ROMFS/px4fmu_common/init.d/rc.rover_defaults
+++ b/ROMFS/px4fmu_common/init.d/rc.rover_defaults
@@ -40,4 +40,3 @@ set PWM_RATE 50
 #
 set MIXER_AUX pass
 set PWM_AUX_OUT 1234
-set PWM_AUX_RATE 50