diff --git a/README.md b/README.md
index 3f631c6e..457b5c02 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ const str = state.serializeDocument(document);
 ```js
 const { State, MarkdownParser } = require('markup-it');
 
-const state = State.create(markdown);
+const state = State.create(MarkdownParser);
 const str = state.serializeDocument(document);
 ```
 
@@ -66,4 +66,4 @@ These scripts can be called with `babel-node`, for example:
 
 ```
 babel-node bin/toJSON.js ./page.md
-```
\ No newline at end of file
+```