diff --git a/fs/sync/sync_test.go b/fs/sync/sync_test.go
index f7c741e13..c833281d7 100644
--- a/fs/sync/sync_test.go
+++ b/fs/sync/sync_test.go
@@ -101,7 +101,7 @@ func TestCopyEmptyDirectories(t *testing.T) {
 			"sub dir",
 			"sub dir2",
 		},
-		fs.Config.ModifyWindow,
+		fs.GetModifyWindow(r.Fremote),
 	)
 }