diff --git a/src/drivers/drv_pwm_output.h b/src/drivers/drv_pwm_output.h
index 5d9c6901a1..3b3cd1830b 100644
--- a/src/drivers/drv_pwm_output.h
+++ b/src/drivers/drv_pwm_output.h
@@ -241,6 +241,9 @@ struct pwm_output_rc_config {
 /** setup OVERRIDE_IMMEDIATE behaviour on FMU fail */
 #define PWM_SERVO_SET_OVERRIDE_IMMEDIATE	_PX4_IOC(_PWM_SERVO_BASE, 30)
 
+/** set SBUS output frame rate in Hz */
+#define PWM_SERVO_SET_SBUS_RATE			_PX4_IOC(_PWM_SERVO_BASE, 31)
+
 /*
  *
  *