diff --git a/romancal/regtest/conftest.py b/romancal/regtest/conftest.py
index 64e5c85ba..22c157ade 100644
--- a/romancal/regtest/conftest.py
+++ b/romancal/regtest/conftest.py
@@ -63,6 +63,10 @@ def postmortem(request, fixturename):
 
 def pytest_collection_modifyitems(config, items):
     # add the index of each item in the list of items
+    # this is used below for artifactory_result_path
+    # to produce a unique result subdirectory for
+    # each test (even if that test shares a name with
+    # another test which is the case for parametrized tests).
     for i, item in enumerate(items):
         item.index = i