diff --git a/kdb-bot/src/bot_data/model/auth_user.py b/kdb-bot/src/bot_data/model/auth_user.py
index 3025174883..262986666b 100644
--- a/kdb-bot/src/bot_data/model/auth_user.py
+++ b/kdb-bot/src/bot_data/model/auth_user.py
@@ -236,7 +236,7 @@ class AuthUser(TableABC):
             `EMail` = '{self._email}', 
             `Password` = '{self._password}', 
             `PasswordSalt` = '{self._password_salt}', 
-            `RefreshToken` = '{self._refresh_token}', 
+            `RefreshToken` = '{"NULL" if self._refresh_token is None else self._refresh_token}', 
             `ConfirmationId` = '{"NULL" if self._confirmation_id is None else self._confirmation_id}', 
             `ForgotPasswordId` = '{"NULL" if self._forgot_password_id is None else self._forgot_password_id}',
             `OAuthId` = '{"NULL" if self._oauth_id is None else self._oauth_id}',