diff --git a/jupyter/base/values/values.yaml b/jupyter/base/values/values.yaml
index 2100933..30fe5b4 100644
--- a/jupyter/base/values/values.yaml
+++ b/jupyter/base/values/values.yaml
@@ -21,6 +21,7 @@ hub:
         """
         import json
         import os
+        from urllib.parse import urlparse
 
         from tornado.httpserver import HTTPServer
         from tornado.ioloop import IOLoop
@@ -38,18 +39,18 @@ hub:
 
 
         def main():
+            print(os.environ)
             app = Application(
                 [
-                    ('/services/refresh-token', RefreshHandler),
+                    (os.environ['JUPYTERHUB_SERVICE_NAME'], RefreshHandler),
                     (r'.*', RefreshHandler),
                 ]
             )
 
             http_server = HTTPServer(app)
-            api_host = '10.152.183.139' 
-            api_port = '8001'
-            print(os.environ)
-            http_server.listen(api_port, api_host)
+            url = urlparse(os.environ['JUPYTERHUB_SERVICE_URL'])
+
+            http_server.listen(url.port, url.hostname)
 
             IOLoop.current().start()
         if __name__ == '__main__':