diff --git a/jupyter/base/values/values.yaml b/jupyter/base/values/values.yaml
index 4dc91bf..d59a055 100644
--- a/jupyter/base/values/values.yaml
+++ b/jupyter/base/values/values.yaml
@@ -142,7 +142,7 @@ hub:
       c.JupyterHub.services = [
           {
               'name': 'refresh-token',
-              'url': 'http://hub:8082',
+              'url': 'http://:8082',
               'display': False,
               'oauth_no_confirm': True,
               'api_token': os.environ['JUPYTERHUB_CRYPT_KEY'],