diff --git a/doc/conf.py b/doc/conf.py
index 67514c2d4057..112d9fdaf22c 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -381,7 +381,8 @@ def js_tag_with_cache_busting(js):
     "logo": {"link": "index",
              "image_light": "images/logo2.svg",
              "image_dark": "images/logo_dark.svg"},
-    "navbar_end": ["theme-switcher", "version-switcher", "mpl_icon_links"]
+    "navbar_end": ["theme-switcher", "version-switcher", "mpl_icon_links"],
+    "page_sidebar_items": "page-toc.html",
 }
 include_analytics = is_release_build
 if include_analytics: