diff --git a/documentation/index.html.js b/documentation/index.html.js
index bba58d1f..a49f75b6 100644
--- a/documentation/index.html.js
+++ b/documentation/index.html.js
@@ -868,7 +868,7 @@ Block
       may be used if you need to force a generator that doesn't yield.
     </p>
 
-    <%= codeFor('async') %>
+    <%= codeFor('async', 'countdown(3)') %>
     <p>
       Similar to how <code>yield return</code> forces a generator, <code>await return</code>
       may be used to force a function to be async.