diff --git a/README.md b/README.md
index b517988e..5600e511 100644
--- a/README.md
+++ b/README.md
@@ -91,8 +91,8 @@ lang, and callback. The above example uses async highlighting with
 
 ```js
 marked.setOptions({
-  highlight: function (code, lang) {
-    return hljs.highlightAuto(lang, code).value;
+  highlight: function (code) {
+    return hljs.highlightAuto(code).value;
   }
 });
 ```