diff --git a/tools/wpt/tests/test_wpt.py b/tools/wpt/tests/test_wpt.py
index 8f8e5186c7cf50..258d429ba927f0 100644
--- a/tools/wpt/tests/test_wpt.py
+++ b/tools/wpt/tests/test_wpt.py
@@ -92,6 +92,8 @@ def test_help():
 
 
 @pytest.mark.slow
+@pytest.mark.xfail(sys.platform == "win32",
+                   reason="https://github.com/web-platform-tests/wpt/issues/12935")
 def test_list_tests(manifest_dir):
     """The `--list-tests` option should not produce an error under normal
     conditions."""
@@ -103,6 +105,8 @@ def test_list_tests(manifest_dir):
 
 
 @pytest.mark.slow
+@pytest.mark.xfail(sys.platform == "win32",
+                   reason="https://github.com/web-platform-tests/wpt/issues/12935")
 def test_list_tests_missing_manifest(manifest_dir):
     """The `--list-tests` option should not produce an error in the absence of
     a test manifest file."""
@@ -126,6 +130,8 @@ def test_list_tests_missing_manifest(manifest_dir):
 
 
 @pytest.mark.slow
+@pytest.mark.xfail(sys.platform == "win32",
+                   reason="https://github.com/web-platform-tests/wpt/issues/12935")
 def test_list_tests_invalid_manifest(manifest_dir):
     """The `--list-tests` option should not produce an error in the presence of
     a malformed test manifest file."""