diff --git a/testing/path/test_local.py b/testing/path/test_local.py
index bd0f2dae0..a5f8dd84e 100644
--- a/testing/path/test_local.py
+++ b/testing/path/test_local.py
@@ -186,6 +186,7 @@ class TestLocalPath(common.CommonFSTests):
         assert l3.strpath == wc.strpath
         assert not hasattr(l3, 'commit')
 
+    @py.test.mark.xfail(run=False, reason="unreliable est for long filenames")
     def test_long_filenames(self, tmpdir):
         if sys.platform == "win32":
             py.test.skip("win32: work around needed for path length limit")