diff --git a/python/cudf/cudf/pandas/_wrappers/pandas.py b/python/cudf/cudf/pandas/_wrappers/pandas.py
index 2055a365063..1d089c8c3eb 100644
--- a/python/cudf/cudf/pandas/_wrappers/pandas.py
+++ b/python/cudf/cudf/pandas/_wrappers/pandas.py
@@ -247,6 +247,7 @@ def custom_repr_html(obj):
 
 
 if ipython_shell:
+    # See: https://ipython.readthedocs.io/en/stable/config/integrating.html#formatters-for-third-party-types
     html_formatter = ipython_shell.display_formatter.formatters["text/html"]
     html_formatter.for_type(DataFrame, custom_repr_html)