diff --git a/src/disk.sh b/src/disk.sh
index 568830f..6f139a6 100644
--- a/src/disk.sh
+++ b/src/disk.sh
@@ -17,7 +17,7 @@ if [ -f "$BOOT" ]; then
   DISK_OPTS="$DISK_OPTS \
     -device virtio-scsi-pci,id=scsi0,iothread=io2,addr=0x5 \
     -drive id=cdrom0,if=none,format=raw,readonly=on,file=$BOOT \
-    -device scsi-cd,bus=scsi0.0,drive=cdrom0,bootindex=10"
+    -device scsi-cd,bus=scsi0.0,drive=cdrom0"
 fi
 
 fmt2ext() {