diff --git a/jupyterhub/singleuser.py b/jupyterhub/singleuser.py
index c911b631..b0723b3f 100644
--- a/jupyterhub/singleuser.py
+++ b/jupyterhub/singleuser.py
@@ -92,7 +92,7 @@ class JupyterHubLoginHandler(LoginHandler):
             if not auth_data:
                 # treat invalid token the same as no token
                 return None
-            user = auth_data['user']
+            user = auth_data['name']
             if user == my_user:
                 self._cached_user = user
                 return user