diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
index ab73671327..6d7a6c5853 100644
--- a/src/libxl/libxl_conf.c
+++ b/src/libxl/libxl_conf.c
@@ -1240,6 +1240,10 @@ libxlUpdateDiskDef(virDomainDiskDef *l_disk, libxl_device_disk *x_disk)
         driver = "phy";
         break;
     case LIBXL_DISK_BACKEND_UNKNOWN:
+#ifdef LIBXL_HAVE_DEVICE_DISK_SPECIFICATION
+    case LIBXL_DISK_BACKEND_STANDALONE:
+#endif
+    default:
         break;
     }
     if (driver)
diff --git a/src/libxl/xen_xl.c b/src/libxl/xen_xl.c
index 4de4e3140f..6919325623 100644
--- a/src/libxl/xen_xl.c
+++ b/src/libxl/xen_xl.c
@@ -715,6 +715,9 @@ xenParseXLDisk(virConf *conf, virDomainDef *def)
                     virDomainDiskSetDriver(disk, "phy");
                     virDomainDiskSetType(disk, VIR_STORAGE_TYPE_BLOCK);
                     break;
+#ifdef LIBXL_HAVE_DEVICE_DISK_SPECIFICATION
+                case LIBXL_DISK_BACKEND_STANDALONE:
+#endif
                 default:
                     virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                                    _("disk backend not supported: %s"),