diff --git a/sys/dev/usb/usbdevs b/sys/dev/usb/usbdevs
index 8a8af616f544..69fbeafa2a30 100644
--- a/sys/dev/usb/usbdevs
+++ b/sys/dev/usb/usbdevs
@@ -2055,6 +2055,7 @@ product MICROSOFT WLNOTEBOOK2	0x00e1	Wireless Optical Mouse 3000 (Model 1056)
 product MICROSOFT WLNOTEBOOK3	0x00d2	Wireless Optical Mouse 3000 (Model 1049)
 product MICROSOFT WLUSBMOUSE	0x00b9	Wireless USB Mouse
 product MICROSOFT XBOX360	0x0292	XBOX 360 WLAN
+product MICROSOFT NATURAL4000	0x00db	Natural Ergonomic Keyboard 4000
 
 /* Microtech products */
 product MICROTECH SCSIDB25	0x0004	USB-SCSI-DB25