diff --git a/pages/merlin6/04 jupyterhub/jupyterhub.md b/pages/merlin6/04 jupyterhub/jupyterhub.md
index 71b603b..52e1f15 100644
--- a/pages/merlin6/04 jupyterhub/jupyterhub.md	
+++ b/pages/merlin6/04 jupyterhub/jupyterhub.md	
@@ -70,7 +70,7 @@ There exist a number of useful [contributed but unofficial
 extensions](https://jupyter-contrib-nbextensions.readthedocs.io/en/latest/index.html)
 that add useful features to your notebooks.
 
-From the classic Notebook UI you can access the available extensions in a separate tab as displayed in this screenshot:
+From the classic Notebook UI you can access the available extensions in a separate tab as displayed in the screenshot, below. You may have to unselect the *disable configuration for nbextensions without explicit copatibility*. The extensions we tested still worked fine with this jupyterhub version of 1.0.0.
 
 {% include image.html file="jupyter-nbextensions.png" caption="Launch Classic Notebook" max-width=586 %}