diff --git a/website/layouts/language.erb b/website/layouts/language.erb
index 7c3c41f8b..e129c088f 100644
--- a/website/layouts/language.erb
+++ b/website/layouts/language.erb
@@ -979,6 +979,10 @@
             <a href="/upgrade-guides/1-0.html">Upgrading to v1.0</a>
           </li>
 
+          <li>
+            <a href="/docs/language/v1-compatibility-promises.html">v1.0 Compatibility Promises</a>
+          </li>
+
           <li>
             <a href="/upgrade-guides/0-15.html">Upgrading to v0.15</a>
           </li>