--- a/ocaml/xenops/device.ml
+++ b/ocaml/xenops/device.ml
@@ -528,7 +528,6 @@
 		"device-type", if dev_type = CDROM then "cdrom" else "disk";
 	];
 	Hashtbl.add_list back_tbl [
-		"physical-device", (string_of_major_minor physpath);
 		"frontend-id", sprintf "%u" domid;
 		(* Prevents the backend hotplug scripts from running if the frontend disconnects.
 		   This allows the xenbus connection to re-establish itself *)
