diff --git a/firmware/usbdrv/usbconfig.h b/firmware/usbdrv/usbconfig.h
index 9815520..7b1a31e 100644
--- a/firmware/usbdrv/usbconfig.h
+++ b/firmware/usbdrv/usbconfig.h
@@ -118,7 +118,7 @@ section at the end of this file).
 /* Define this to 1 if the device has its own power supply. Set it to 0 if the
  * device is powered from the USB bus.
  */
-#define USB_CFG_MAX_BUS_POWER           300
+#define USB_CFG_MAX_BUS_POWER           200
 /* Set this variable to the maximum USB bus power consumption of your device.
  * The value is in milliamperes. [It will be divided by two since USB
  * communicates power requirements in units of 2 mA.]