diff --git a/doc/advanced/config-cheat-sheet.en-us.md b/doc/advanced/config-cheat-sheet.en-us.md
index 5ed2ce43..29489d88 100644
--- a/doc/advanced/config-cheat-sheet.en-us.md
+++ b/doc/advanced/config-cheat-sheet.en-us.md
@@ -68,6 +68,7 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`.
 - `EXPLORE_PAGING_NUM`: **20**: Number of repositories that are shown in one explore page.
 - `ISSUE_PAGING_NUM`: **10**: Number of issues that are shown in one page (for all pages that list issues).
 - `FEED_MAX_COMMIT_NUM`: **5**: Number of maximum commits shown in one activity feed.
+- `GRAPH_MAX_COMMIT_NUM`: **100**: Number of maximum commits shown in the commit graph.
 - `DEFAULT_THEME`: **gitea**: \[gitea, arc-green\]: Set the default theme for the Gitea install.
 
 ### UI - Admin (`ui.admin`)