Index: virt-manager-0.10.1/virtManager/addhardware.py
===================================================================
--- virt-manager-0.10.1.orig/virtManager/addhardware.py
+++ virt-manager-0.10.1/virtManager/addhardware.py
@@ -778,7 +778,7 @@ class vmmAddHardware(vmmGObjectUI):
         disk_buses = ["ide", "sata", "scsi", "sd",
                       "usb", "virtio", "virtio-scsi", "xen"]
         floppy_buses = ["fdc"]
-        cdrom_buses = ["ide", "scsi"]
+        cdrom_buses = ["ide", "scsi", "xen"]
         lun_buses = ["virtio-scsi"]
 
         if bus in disk_buses: