diff --git a/docs/metrics_ext.rst b/docs/metrics_ext.rst
index 84a79c499..eb8a67899 100644
--- a/docs/metrics_ext.rst
+++ b/docs/metrics_ext.rst
@@ -13,7 +13,9 @@ Demo
 
 .. _PMP demo Jupyter notebook: https://github.com/PCMDI/pcmdi_metrics/blob/main/doc/jupyter/Demo/Demo_8_extremes.ipynb
 
+* `Extremes Portrait Plot demo Jupyter notebook`_
 
+.. _Extremes Portrait Plot demo Jupyter notebook: https://github.com/PCMDI/pcmdi_metrics/blob/main/pcmdi_metrics/graphics/portrait_plot/return_value_portrait_plot_demo.ipynb
 
 Inputs
 ========