diff --git a/ROMFS/px4fmu_common/init.d/rc.mc_defaults b/ROMFS/px4fmu_common/init.d/rc.mc_defaults
index a5c326ebc6..6506ed8c3e 100644
--- a/ROMFS/px4fmu_common/init.d/rc.mc_defaults
+++ b/ROMFS/px4fmu_common/init.d/rc.mc_defaults
@@ -20,3 +20,11 @@ set PWM_RATE 400
 set PWM_DISARMED 900
 set PWM_MIN 1075
 set PWM_MAX 2000
+
+# 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