diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 1074b8921a5d..15d7c311e86e 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -574,6 +574,7 @@ struct usb_function_instance {
 	struct config_group group;
 	struct list_head cfs_list;
 	struct usb_function_driver *fd;
+	struct usb_function *f;
 	int (*set_inst_name)(struct usb_function_instance *inst,
 			      const char *name);
 	void (*free_func_inst)(struct usb_function_instance *inst);