diff --git a/src/borg/testsuite/hashindex_pytest.py b/src/borg/testsuite/hashindex_pytest.py
index 5cf8b75e1..010aaec6e 100644
--- a/src/borg/testsuite/hashindex_pytest.py
+++ b/src/borg/testsuite/hashindex_pytest.py
@@ -1,3 +1,5 @@
+# more hashindex tests. kept separate so we can use pytest here.
+
 import os
 import random