diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 890bc14..6170681 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -247,6 +247,7 @@
  *	value; it should return zero on successful initialization.
  * @unbind: Reverses @bind(); called as a side effect of unregistering
  *	this driver.
+ * @disconnect: optional driver disconnect method
  * @suspend: Notifies when the host stops sending USB traffic,
  *	after function notifications
  * @resume: Notifies configuration when the host restarts USB traffic,