diff --git a/AsyncFunction.md b/AsyncFunction.md
index bcf9ce8..50281a1 100644
--- a/AsyncFunction.md
+++ b/AsyncFunction.md
@@ -23,6 +23,8 @@ exports.main = main;
 #### In the console
 
 ```js
+var STD = require("lib/std");
+
 function main(args) {
     [5, 4, 3, 2, 1].forEach(function(x) {
         new AsyncFunction('sub_01', 'mymodule').run(x);