diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index eb87640f362a09abf8464acf356d9d5dcd303dd8..ea1a103c99bea9f23d3a4eb7fb4f846ccbed987f 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -186,6 +186,7 @@ static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(0x1199, 0x6821) },	/* Sierra Wireless AirCard 875U */
 	{ USB_DEVICE(0x1199, 0x6832) },	/* Sierra Wireless MC8780 */
 	{ USB_DEVICE(0x1199, 0x6833) },	/* Sierra Wireless MC8781 */
+	{ USB_DEVICE(0x1199, 0x683A) },	/* Sierra Wireless MC8785 */
 	{ USB_DEVICE(0x1199, 0x683B) },	/* Sierra Wireless MC8785 Composite */
 	{ USB_DEVICE(0x1199, 0x683C) },	/* Sierra Wireless MC8790 */
 	{ USB_DEVICE(0x1199, 0x683D) },	/* Sierra Wireless MC8790 */