diff --git a/superset/reports/schemas.py b/superset/reports/schemas.py
index acbb6583a..b034cb136 100644
--- a/superset/reports/schemas.py
+++ b/superset/reports/schemas.py
@@ -159,7 +159,7 @@ class ReportSchedulePostSchema(Schema):
     creation_method = EnumField(
         ReportCreationMethodType,
         by_value=True,
-        required=True,
+        required=False,
         description=creation_method_description,
     )
     dashboard = fields.Integer(required=False, allow_none=True)