diff --git a/prediction/algorithms/polygon_builder.py b/prediction/algorithms/polygon_builder.py
index 78339fb..5d0be30 100644
--- a/prediction/algorithms/polygon_builder.py
+++ b/prediction/algorithms/polygon_builder.py
@@ -399,6 +399,7 @@ def build_all_group_snapshots(
             'group_type': 'FLEET',
             'group_key': str(company_id),
             'group_label': group_label,
+            'resolution': '1h',
             'snapshot_time': now,
             'polygon_wkt': polygon_wkt,
             'center_wkt': center_wkt,