diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 5ca04e82ea196a491f9b20c1f1cd3e82c9c35eeb..0fed43a96871d0967f4b2d4ee7a13695ea46b2e0 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -78,6 +78,7 @@ static int  option_send_setup(struct usb_serial_port *port);
 #define OPTION_PRODUCT_FUSION2          0x6300
 #define OPTION_PRODUCT_COBRA            0x6500
 #define OPTION_PRODUCT_COBRA2           0x6600
+#define OPTION_PRODUCT_GTMAX36          0x6701
 #define HUAWEI_PRODUCT_E600             0x1001
 #define HUAWEI_PRODUCT_E220             0x1003
 #define AUDIOVOX_PRODUCT_AIRCARD        0x0112
@@ -90,6 +91,7 @@ static struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA2) },
+	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GTMAX36) },
 	{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
 	{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220) },
 	{ USB_DEVICE(AUDIOVOX_VENDOR_ID, AUDIOVOX_PRODUCT_AIRCARD) },
@@ -104,6 +106,7 @@ static struct usb_device_id option_ids1[] = {
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA2) },
+	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GTMAX36) },
 	{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
 	{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220) },
 	{ USB_DEVICE(AUDIOVOX_VENDOR_ID, AUDIOVOX_PRODUCT_AIRCARD) },