diff --git a/os_dep/linux/usb_intf.c b/os_dep/linux/usb_intf.c
index e3c2632..31e527a 100644
--- a/os_dep/linux/usb_intf.c
+++ b/os_dep/linux/usb_intf.c
@@ -158,6 +158,7 @@ static struct usb_device_id rtw_usb_id_tbl[] = {
 	{USB_DEVICE(0x2001, 0x330F), .driver_info = RTL8188E}, /* DLink DWA-125 REV D1 */ 
 	{USB_DEVICE(0x2001, 0x3310), .driver_info = RTL8188E}, /* Dlink DWA-123 REV D1 */ 
 	{USB_DEVICE(0x2001, 0x3311), .driver_info = RTL8188E}, /* DLink GO-USB-N150 REV B1 */ 
+	{USB_DEVICE(0x2001, 0x331B), .driver_info = RTL8188E}, /* DLink DWA-121 REV B1 */ 
 	{USB_DEVICE(0x056E, 0x4008), .driver_info = RTL8188E}, /* Elecom WDC-150SU2M */ 	
 #endif