diff --git a/README.md b/README.md
index 49dcc91..cf88c4e 100644
--- a/README.md
+++ b/README.md
@@ -26,8 +26,9 @@ npm install markdown-it-katex
 Use it in your javascript
 
 ```javascript
-var md = require('markdown-it')(),
-    mk = require('markdown-it-katex');
+var MarkdownIt = require('markdown-it'),
+    md = new MarkdownIt();
+var mk = require('markdown-it-katex');
 
 md.use(mk);