diff --git a/jupyterhub/base/jupyter_notebook_config.py b/jupyterhub/base/jupyter_notebook_config.py
index 3a2a84764a92ab9b6b3e8f39b86071b47d854f6e..41f1d145c90359cc17f5e363272ab13ef6e7bb02 100755
--- a/jupyterhub/base/jupyter_notebook_config.py
+++ b/jupyterhub/base/jupyter_notebook_config.py
@@ -2,3 +2,4 @@ c.NotebookApp.allow_root = True
 c.NotebookApp.terminado_settings = {"shell_command": ["/bin/bash", "-l"]}
 c.MultiKernelManager.default_kernel_name = "default"
 c.NotebookApp.notebook_dir = "/root"
+c.Session.debug = True