@@ -99,6 +99,9 @@ func Init(base string, opt []string, uidMaps, gidMaps []idtools.IDMap) (graphdri

 		return nil, fmt.Errorf("BUG: zfs get all -t filesystem -rHp '%s' should contain '%s'", options.fsName, options.fsName)

 	}

+	if err := mount.MakePrivate(base); err != nil {

+		return nil, err

+	}

 	d := &Driver{

 		dataset:          rootDataset,

 		options:          options,