diff --git a/access_token_service/ats.py b/access_token_service/ats.py
index df588ebbc85b6bc671b66bb7c2c2ebcf70be0bab..fd382e8eda208096243f3455f2f335d648df7dea 100644
--- a/access_token_service/ats.py
+++ b/access_token_service/ats.py
@@ -21,7 +21,7 @@ class AccessTokenHandler(HubAuthenticated, RequestHandler):
     @authenticated
     async def get(self):
         user = self.get_current_user()
-        user_json = await self._request_token(user.username)
+        user_json = await self._request_token(user['username'])
         return user_json['auth_state']['access_token']