diff --git a/test/test_api/test_environment.py b/test/test_api/test_environment.py
index 9f5eac86..f8fcfd6a 100644
--- a/test/test_api/test_environment.py
+++ b/test/test_api/test_environment.py
@@ -24,6 +24,7 @@ def test_find_python_environments():
         assert parser_version[:2] == env.version_info[:2]
 
 
+# Cannot deduce the environment from Python executable name on Windows.
 @pytest.mark.skipif("os.name == 'nt'")
 @pytest.mark.parametrize(
     'version',