diff --git a/backend/apps/parks/models/parks.py b/backend/apps/parks/models/parks.py
index 26a958f5..c24f3e29 100644
--- a/backend/apps/parks/models/parks.py
+++ b/backend/apps/parks/models/parks.py
@@ -382,6 +382,7 @@ class Park(StateMachineMixin, TrackedModel):
             # Try pghistory events
             print("Searching pghistory events")
             event_model = getattr(cls, "event_model", None)
+            historical_event = None
             if event_model:
                 historical_event = event_model.objects.filter(slug=slug).order_by("-pgh_created_at").first()