diff --git a/api/services/dataset_service.py b/api/services/dataset_service.py
index ce5fa632dcfec1..d10df3f600beab 100644
--- a/api/services/dataset_service.py
+++ b/api/services/dataset_service.py
@@ -137,7 +137,7 @@ def get_datasets_by_ids(ids, tenant_id):
 
     @staticmethod
     def create_empty_dataset(
-        tenant_id: str, name: str, indexing_technique: Optional[str], account: Account, permission: Optional[str]
+        tenant_id: str, name: str, indexing_technique: Optional[str], account: Account, permission: Optional[str] = None
     ):
         # check if dataset name already exists
         if Dataset.query.filter_by(name=name, tenant_id=tenant_id).first():