diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 8675e145ea8b..af4396cc4ea8 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -587,6 +587,7 @@ 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);