diff --git a/swh/model/hypothesis_strategies.py b/swh/model/hypothesis_strategies.py
index 3e8198bd42d7bd1d54dc626e35a45159e6032daa..1116f747d13a264cc2b93b95a556e385069dd501 100644
--- a/swh/model/hypothesis_strategies.py
+++ b/swh/model/hypothesis_strategies.py
@@ -160,6 +160,7 @@ def origin_visits_d():
         status=sampled_from(["ongoing", "full", "partial"]),
         type=pgsql_text(),
         snapshot=optional(sha1_git()),
+        metadata=none(),
     )