diff --git a/doc/langref.html.in b/doc/langref.html.in
index 28577560e285cc9532383ee8d5d901f57a6e791b..02c9130845c8e9d8c1a7eab62111060b5c08b589 100644
--- a/doc/langref.html.in
+++ b/doc/langref.html.in
@@ -315,6 +315,7 @@
           <a href="https://ziglang.org/documentation/0.10.1/">0.10.1</a> |
           <a href="https://ziglang.org/documentation/0.11.0/">0.11.0</a> |
           <a href="https://ziglang.org/documentation/0.12.0/">0.12.0</a> |
+          <a href="https://ziglang.org/documentation/0.13.0/">0.13.0</a> |
           master
         </nav>
         <nav aria-labelledby="table-of-contents">