diff --git a/doc/advanced/config-cheat-sheet.en-us.md b/doc/advanced/config-cheat-sheet.en-us.md
index 92758c61..4e7ef492 100644
--- a/doc/advanced/config-cheat-sheet.en-us.md
+++ b/doc/advanced/config-cheat-sheet.en-us.md
@@ -1288,3 +1288,4 @@ PROXY_HOSTS = *.github.com
 - `SHOW_FOOTER_VERSION`: **true**: Show Gitea and Go version information in the footer.
 - `SHOW_FOOTER_TEMPLATE_LOAD_TIME`: **true**: Show time of template execution in the footer.
 - `ENABLE_SITEMAP`: **true**: Generate sitemap.
+- `ENABLE_FEED`: **true**: Enable/Disable RSS/Atom feed.