diff --git a/jupyterhub/handlers/pages.py b/jupyterhub/handlers/pages.py
index a50af07e..d93f2638 100644
--- a/jupyterhub/handlers/pages.py
+++ b/jupyterhub/handlers/pages.py
@@ -291,6 +291,7 @@ class SpawnPendingHandler(BaseHandler):
                 spawn_url=spawn_url,
                 failed=True,
                 failed_message=getattr(exc, 'jupyterhub_message', ''),
+                exception=exc,
             )
             self.finish(html)
             return