diff --git a/api/controllers/console/workspace/members.py b/api/controllers/console/workspace/members.py
index f018fada3..cf2a10f45 100644
--- a/api/controllers/console/workspace/members.py
+++ b/api/controllers/console/workspace/members.py
@@ -54,7 +54,7 @@ class MemberInviteEmailApi(Resource):
     @cloud_edition_billing_resource_check("members")
     def post(self):
         parser = reqparse.RequestParser()
-        parser.add_argument("emails", type=str, required=True, location="json", action="append")
+        parser.add_argument("emails", type=list, required=True, location="json")
         parser.add_argument("role", type=str, required=True, default="admin", location="json")
         parser.add_argument("language", type=str, required=False, location="json")
         args = parser.parse_args()