diff --git a/os_dep/linux/usb_intf.c b/os_dep/linux/usb_intf.c
index 40d1af7..c7a87ff 100644
--- a/os_dep/linux/usb_intf.c
+++ b/os_dep/linux/usb_intf.c
@@ -302,6 +302,7 @@ static struct usb_device_id rtw_usb_id_tbl[] ={
 	{USB_DEVICE(0x0411, 0x0242),.driver_info = RTL8821}, /* BUFFALO - Edimax */
 	{USB_DEVICE(0x056E, 0x4007),.driver_info = RTL8821}, /* ELECOM - WDC-433DU2H */
 	{USB_DEVICE(0x04BB, 0x0953),.driver_info = RTL8821}, /* I-O DATA - WN-AC433UA */
+	{USB_DEVICE(0x04BB, 0x0959),.driver_info = RTL8821}, /* I-O DATA - WN-AC433UMK */
 	{USB_DEVICE(0x0BDA, 0xA811),.driver_info = RTL8821}, /* GMYLE - AC450 */
 	{USB_DEVICE(0x2001, 0x3318),.driver_info = RTL8821}, /* D-Link - DWA-172 */
 	{USB_DEVICE(0x3823, 0x6249),.driver_info = RTL8821}, /* Obihai - OBiWiFi */