diff --git a/src/drivers/drv_pwm_output.h b/src/drivers/drv_pwm_output.h
index 445dbc07e3..413de1d60e 100644
--- a/src/drivers/drv_pwm_output.h
+++ b/src/drivers/drv_pwm_output.h
@@ -234,9 +234,6 @@ struct pwm_output_rc_config {
 /** setup OVERRIDE_IMMEDIATE behaviour on FMU fail */
 #define PWM_SERVO_SET_OVERRIDE_IMMEDIATE	_PX4_IOC(_PWM_SERVO_BASE, 32)
 
-/** set SBUS output frame rate in Hz */
-#define PWM_SERVO_SET_SBUS_RATE			_PX4_IOC(_PWM_SERVO_BASE, 33)
-
 /** set auxillary output mode. These correspond to enum Mode in px4fmu/fmu.cpp */
 #define PWM_SERVO_MODE_NONE         0
 #define PWM_SERVO_MODE_1PWM         1
diff --git a/src/drivers/px4io/px4io.cpp b/src/drivers/px4io/px4io.cpp
index 61d75c84fa..19970fc178 100644
--- a/src/drivers/px4io/px4io.cpp
+++ b/src/drivers/px4io/px4io.cpp
@@ -2726,11 +2726,6 @@ PX4IO::ioctl(file *filep, int cmd, unsigned long arg)
 
 		break;
 
-	case PWM_SERVO_SET_SBUS_RATE:
-		/* set the requested SBUS frame rate */
-		ret = io_reg_set(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_SBUS_RATE, arg);
-		break;
-
 	case DSM_BIND_START:
 		/* bind a DSM receiver */
 		ret = dsm_bind_ioctl(arg);