diff --git a/docs/source/conf.py b/docs/source/conf.py
index 2169c2e4222..1c4b3fd0dba 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -31,7 +31,7 @@
 # "examples/Layout Example.ipynb", # bqplot/ipyleaflet dependencies require ipywidgets 7
 # "examples/Layout Templates.ipynb", # bqplot/ipyleaflet dependencies require ipywidgets 7
 # "examples/Variable Inspector.ipynb", # uses ipykernel-specific features
-jupyterlite_contents = "examples"
+jupyterlite_contents = ["examples"]
 
 # intersphinx_mapping = {
 #     'ipython': ('http://ipython.org/ipython-doc/dev/', None),