diff --git a/pkg_resources/tests/test_integration_zope_interface.py b/pkg_resources/tests/test_integration_zope_interface.py
index 634025c238..4e37c3401b 100644
--- a/pkg_resources/tests/test_integration_zope_interface.py
+++ b/pkg_resources/tests/test_integration_zope_interface.py
@@ -7,6 +7,10 @@
 pytestmark = pytest.mark.integration
 
 
+# For the sake of simplicity this test uses fixtures defined in
+# `setuptools.test.fixtures`,
+# and it also exercise conditions considered deprecated...
+# So if needed this test can be deleted.
 @pytest.mark.skipif(
     platform.system() != "Linux",
     reason="only demonstrated to fail on Linux in #4399",