diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index e280ad8e12f75898850eb03659d513ce1d1dee7b..83d6ee4aa758de79a32060b407fd883f5b818e9e 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -302,6 +302,7 @@ static void option_instat_callback(struct urb *urb);
 #define QISDA_PRODUCT_H21_4512			0x4512
 #define QISDA_PRODUCT_H21_4523			0x4523
 #define QISDA_PRODUCT_H20_4515			0x4515
+#define QISDA_PRODUCT_H20_4518			0x4518
 #define QISDA_PRODUCT_H20_4519			0x4519
 
 /* TLAYTECH PRODUCTS */
@@ -852,6 +853,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4512) },
 	{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4523) },
 	{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4515) },
+	{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4518) },
 	{ USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4519) },
 	{ USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_G450) },
 	{ USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_HSDPA_MINICARD ) }, /* Toshiba 3G HSDPA == Novatel Expedite EU870D MiniCard */