diff --git a/src/drivers/drv_pwm_output.h b/src/drivers/drv_pwm_output.h
index 9e539aa480..cd75a8adc7 100644
--- a/src/drivers/drv_pwm_output.h
+++ b/src/drivers/drv_pwm_output.h
@@ -248,9 +248,6 @@ struct pwm_output_rc_config {
 /** force safety switch on (to enable use of safety switch) */
 #define PWM_SERVO_SET_FORCE_SAFETY_ON		_PX4_IOC(_PWM_SERVO_BASE, 28)
 
-/** set the 'OVERRIDE OK' bit, which allows for RC control on FMU loss */
-#define PWM_SERVO_SET_OVERRIDE_OK		_PX4_IOC(_PWM_SERVO_BASE, 30)
-
 /** clear the 'OVERRIDE OK' bit, which allows for RC control on FMU loss */
 #define PWM_SERVO_CLEAR_OVERRIDE_OK		_PX4_IOC(_PWM_SERVO_BASE, 31)
 
diff --git a/src/drivers/px4io/px4io.cpp b/src/drivers/px4io/px4io.cpp
index f5ccca7377..ff7176a119 100644
--- a/src/drivers/px4io/px4io.cpp
+++ b/src/drivers/px4io/px4io.cpp
@@ -2842,12 +2842,6 @@ PX4IO::ioctl(file *filep, int cmd, unsigned long arg)
 
 		break;
 
-	case PWM_SERVO_SET_OVERRIDE_OK:
-		/* set the 'OVERRIDE OK' bit */
-		ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, 0, PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK);
-		_override_available = true;
-		break;
-
 	case PWM_SERVO_CLEAR_OVERRIDE_OK:
 		/* clear the 'OVERRIDE OK' bit */
 		ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, PX4IO_P_SETUP_ARMING_MANUAL_OVERRIDE_OK, 0);