diff --git a/api-customer/src/controllers/AuthController.py b/api-customer/src/controllers/AuthController.py
index eddd0625..ea989a92 100644
--- a/api-customer/src/controllers/AuthController.py
+++ b/api-customer/src/controllers/AuthController.py
@@ -1,3 +1,5 @@
+from asyncio.windows_events import NULL
+
 from board_mate.auth import *
 from flask import jsonify, request
 from pydantic import StrictStr
@@ -36,5 +38,5 @@ class AuthController:
                 return jsonify({"success" : response.success, "message" : response.message , "data" : response.data}), 200
         except Exception as e:
             print(f"Exception when calling AuthAPI->login: {e}")
-            return jsonify({"success" : False, "message" : e , "data" : null}), 500
+            return jsonify({"success" : False, "message" : e , "data" : None}), 500