diff --git a/xarray/tests/test_backends.py b/xarray/tests/test_backends.py
index 0cbf3af3664..9ec67bf47dc 100644
--- a/xarray/tests/test_backends.py
+++ b/xarray/tests/test_backends.py
@@ -3459,6 +3459,7 @@ def skip_if_not_engine(engine):
 
 @requires_dask
 @pytest.mark.filterwarnings("ignore:use make_scale(name) instead")
+@pytest.mark.xfail(reason="Flaky test. Very open to contributions on fixing this")
 def test_open_mfdataset_manyfiles(
     readengine, nfiles, parallel, chunks, file_cache_maxsize
 ):