diff --git a/swh/indexer/tests/utils.py b/swh/indexer/tests/utils.py
--- a/swh/indexer/tests/utils.py
+++ b/swh/indexer/tests/utils.py
@@ -170,6 +170,7 @@
             "offset": 0,
         },
         "directory": b"10",
+        "parents": (),
     }
 ]