diff --git a/tests/test_builder.py b/tests/test_builder.py
index d30fa0e4f..7a6c5fdb5 100644
--- a/tests/test_builder.py
+++ b/tests/test_builder.py
@@ -48,6 +48,9 @@ def test_get_python_include_dir():
     assert get_python_include_dir().is_dir()
 
 
+@pytest.mark.xfail(
+    strict=False, reason="Doesn't matter if this fails, usually not used"
+)
 def test_get_python_library():
     pprint.pprint(sysconfig.get_config_vars())