diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index c0f817b..af6b3bf 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -731,7 +731,7 @@
  * support.
  */
 static struct vio_device_id viocd_device_table[] __devinitdata = {
-	{ "viocd", "" },
+	{ "block", "IBM,iSeries-viocd" },
 	{ "", "" }
 };
 MODULE_DEVICE_TABLE(vio, viocd_device_table);
diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c
index 60aabdb..11c7e9d 100644
--- a/drivers/char/viotape.c
+++ b/drivers/char/viotape.c
@@ -989,7 +989,7 @@
  * support.
  */
 static struct vio_device_id viotape_device_table[] __devinitdata = {
-	{ "viotape", "" },
+	{ "byte", "IBM,iSeries-viotape" },
 	{ "", "" }
 };
 MODULE_DEVICE_TABLE(vio, viotape_device_table);