diff --git a/sys/dev/pv/vioscsi.c b/sys/dev/pv/vioscsi.c
index 02b95e823e2..904f22d7230 100644
--- a/sys/dev/pv/vioscsi.c
+++ b/sys/dev/pv/vioscsi.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vioscsi.c,v 1.37 2025/08/01 14:41:03 sf Exp $	*/
+/*	$OpenBSD: vioscsi.c,v 1.38 2025/11/23 10:32:47 sf Exp $	*/
 /*
  * Copyright (c) 2013 Google Inc.
  *
@@ -77,7 +77,7 @@ const struct cfattach vioscsi_ca = {
 };
 
 struct cfdriver vioscsi_cd = {
-	NULL, "vioscsi", DV_DULL,
+	NULL, "vioscsi", DV_DULL, CD_COCOVM
 };
 
 const struct scsi_adapter vioscsi_switch = {
diff --git a/sys/scsi/cd.c b/sys/scsi/cd.c
index 7307f2d912c..0a8328704b0 100644
--- a/sys/scsi/cd.c
+++ b/sys/scsi/cd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cd.c,v 1.266 2022/09/01 13:45:27 krw Exp $	*/
+/*	$OpenBSD: cd.c,v 1.267 2025/11/23 10:32:47 sf Exp $	*/
 /*	$NetBSD: cd.c,v 1.100 1997/04/02 02:29:30 mycroft Exp $	*/
 
 /*
@@ -152,7 +152,7 @@ const struct cfattach cd_ca = {
 };
 
 struct cfdriver cd_cd = {
-	NULL, "cd", DV_DISK
+	NULL, "cd", DV_DISK, CD_COCOVM
 };
 
 const struct scsi_inquiry_pattern cd_patterns[] = {