diff --git a/src/drivers/drv_pwm_output.h b/src/drivers/drv_pwm_output.h
index 743a4d5b31..35e9619f07 100644
--- a/src/drivers/drv_pwm_output.h
+++ b/src/drivers/drv_pwm_output.h
@@ -1,6 +1,6 @@
 /****************************************************************************
  *
- *   Copyright (C) 2012 PX4 Development Team. All rights reserved.
+ *   Copyright (c) 2012-2015 PX4 Development Team. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -57,7 +57,7 @@ __BEGIN_DECLS
  * PX4FMU with PX4IO connected) there may be other devices that
  * respond to this protocol.
  */
-#define PWM_OUTPUT_BASE_DEVICE_PATH "dev/pwm_output"
+#define PWM_OUTPUT_BASE_DEVICE_PATH "/dev/pwm_output"
 #define PWM_OUTPUT0_DEVICE_PATH	"/dev/pwm_output0"
 
 /**