diff --git a/roles/jupyterhub/templates/jupyterhub_config.py b/roles/jupyterhub/templates/jupyterhub_config.py
index 98d438ee..30c46afb 100644
--- a/roles/jupyterhub/templates/jupyterhub_config.py
+++ b/roles/jupyterhub/templates/jupyterhub_config.py
@@ -120,11 +120,11 @@ async def authenticate(self, handler, data):
 
 class QHubHPCSpawnerBase(SlurmSpawner):
   async def poll(self):
-      # on server restart the port appears to change when poll() is called
-      # on the server.port object. This shim ensures that port is preserved
-      port = self.server.port
+      # on server restart the IP and port appears to change when poll() is called
+      # on the server object. This shim ensures that those are preserved
+      ip, port = self.server.ip, self.server.port
       value = await super().poll()
-      self.server.port = port
+      self.server.ip, self.server.port = ip, port
       return value
 
   req_conda_environment_prefix = Unicode('',