diff --git a/sys/alpha/alpha/promcons.c b/sys/alpha/alpha/promcons.c
index e5462fcda89d..68bf6bfc252c 100644
--- a/sys/alpha/alpha/promcons.c
+++ b/sys/alpha/alpha/promcons.c
@@ -250,7 +250,7 @@ void
 promcnattach(int alpha_console)
 {
 	prom_consdev.cn_pri = CN_NORMAL;
-	prom_consdev.cn_dev = makedev(CDEV_MAJOR, 0);
+	sprintf(prom_consdev.cn_name, "promcons");
 	make_dev(&prom_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600, "promcons");
 	cnadd(&prom_consdev);
 	promcn_attached = 1;
diff --git a/sys/alpha/tlsb/zs_tlsb.c b/sys/alpha/tlsb/zs_tlsb.c
index bcc106a60011..d2f89db3033f 100644
--- a/sys/alpha/tlsb/zs_tlsb.c
+++ b/sys/alpha/tlsb/zs_tlsb.c
@@ -227,7 +227,7 @@ zs_cnattach(vm_offset_t base, vm_offset_t offset)
 	/* should really bet part of ivars */
 	zs_console_addr = (caddr_t) ALPHA_PHYS_TO_K0SEG(base + offset);
 
-	zs_consdev.cn_dev = makedev(CDEV_MAJOR, 0);
+	sprintf(zs_consdev.cn_name, "zs0");
 	zs_consdev.cn_pri = CN_NORMAL;
 	make_dev(&zs_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600, "zs0");
 	cnadd(&zs_consdev);