diff --git a/posthog/temporal/batch_exports/squash_person_overrides.py b/posthog/temporal/batch_exports/squash_person_overrides.py
index 89c85ae0eae0b..6843131c60333 100644
--- a/posthog/temporal/batch_exports/squash_person_overrides.py
+++ b/posthog/temporal/batch_exports/squash_person_overrides.py
@@ -394,7 +394,7 @@ def clear(self, team_id: int) -> None:
     "flat": FlatPostgresPersonOverridesManager,
 }
 
-DEFAULT_POSTGRES_PERSON_OVERRIDES_MANAGER = "mappings"
+DEFAULT_POSTGRES_PERSON_OVERRIDES_MANAGER = "flat"
 assert DEFAULT_POSTGRES_PERSON_OVERRIDES_MANAGER in POSTGRES_PERSON_OVERRIDES_MANAGERS