diff --git a/ingester/datalake_ingester/storage.py b/ingester/datalake_ingester/storage.py
index 27e5dc5..ab49e6a 100644
--- a/ingester/datalake_ingester/storage.py
+++ b/ingester/datalake_ingester/storage.py
@@ -80,7 +80,7 @@ def store_latest(self, record):
         }
 
         if record['metadata']['work_id'] is None:
-            work_id_value = {'BOOL': False}
+            work_id_value = {'NULL': True}
         else:
             work_id_value = {'S': str(record['metadata']['work_id'])}
 
diff --git a/ingester/tests/test_ingester.py b/ingester/tests/test_ingester.py
index 82e6090..3b7ccfe 100644
--- a/ingester/tests/test_ingester.py
+++ b/ingester/tests/test_ingester.py
@@ -39,7 +39,6 @@ def test_ingest_random_latest(storage, dynamodb_latest_table, random_s3_file_mak
     ingester = Ingester(storage)
     ingester.ingest(url)
     records = [dict(r) for r in dynamodb_latest_table.scan()]
-
     def convert_records(records):
         return {k: (decimal.Decimal(str(v)) if isinstance(v, (int, float)) else v) for k, v in records[0].items()}