diff --git a/public/sitemap.xml b/public/sitemap.xml
index 5a69f95..bf2654b 100644
--- a/public/sitemap.xml
+++ b/public/sitemap.xml
@@ -85,6 +85,7 @@
     <url><loc>https://csslayout.io/patterns/timeline</loc></url>
     <url><loc>https://csslayout.io/patterns/toggle-password-visibility</loc></url>
     <url><loc>https://csslayout.io/patterns/tooltip</loc></url>
+    <url><loc>https://csslayout.io/patterns/tree-diagram</loc></url>
     <url><loc>https://csslayout.io/patterns/triangle-buttons</loc></url>
     <url><loc>https://csslayout.io/patterns/upload-button</loc></url>
     <url><loc>https://csslayout.io/patterns/validation-icon</loc></url>