diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index c720d10..ae78337 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -224,6 +224,7 @@
 #define USB_CLASS_CONTENT_SEC		0x0d	/* content security */
 #define USB_CLASS_VIDEO			0x0e
 #define USB_CLASS_WIRELESS_CONTROLLER	0xe0
+#define USB_CLASS_MISC			0xef
 #define USB_CLASS_APP_SPEC		0xfe
 #define USB_CLASS_VENDOR_SPEC		0xff