diff --git a/content/guides/author-libraries.md b/content/guides/author-libraries.md
index bb131d7532c6..3f76b51f505c 100644
--- a/content/guides/author-libraries.md
+++ b/content/guides/author-libraries.md
@@ -15,7 +15,7 @@ webpack is a tool which can be used to bundle application code and also to bundl
 
 Let's assume that you are writing a small library `webpack-numbers` allowing to convert numbers 1 to 5 from their numeric to a textual representation and vice-versa. The implementation makes use of ES2015 modules, and might look like this:
 
-__src/index.js__
+__src/webpack-numbers__
 
 ```javascript
 import _ from 'lodash';