diff --git a/src/drivers/drv_pwm_output.h b/src/drivers/drv_pwm_output.h
index c3eea310ff..7a93e513ed 100644
--- a/src/drivers/drv_pwm_output.h
+++ b/src/drivers/drv_pwm_output.h
@@ -160,7 +160,7 @@ ORB_DECLARE(output_pwm);
 
 #define DSM2_BIND_PULSES 3	/* DSM_BIND_START ioctl parameter, pulses required to start dsm2 pairing */
 #define DSMX_BIND_PULSES 7	/* DSM_BIND_START ioctl parameter, pulses required to start dsmx pairing */
-#define DSMX8_BIND_PULSES 10	/* DSM_BIND_START ioctl parameter, pulses required to start 8 or more channel dsmx pairing */
+#define DSMX8_BIND_PULSES 10 	/* DSM_BIND_START ioctl parameter, pulses required to start 8 or more channel dsmx pairing */
 
 /** power up DSM receiver */
 #define DSM_BIND_POWER_UP _IOC(_PWM_SERVO_BASE, 11)