diff --git a/week2/notes.md b/week2/notes.md
index d049b1e..83c1726 100644
--- a/week2/notes.md
+++ b/week2/notes.md
@@ -13,6 +13,7 @@ Letter:
 [word-wrap](https://www.npmjs.com/package/word-wrap)
 
 ```
+// letter.js
 
 var chance = require('chance').Chance();