diff --git a/README.md b/README.md
index 53f4639..cc9fe83 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ import reactTreeWalker from 'react-tree-walker';
 class Foo extends React.Component {
   constructor(props) {
     super(props);
-    this.getValue = this.getValue.bind(this);
+    this.getData = this.getData.bind(this);
   }
 
   getData() {
@@ -84,15 +84,15 @@ function visitor(element, instance, context) {
           // prevent traversing "4"'s children
           ? false
           : true
-        }
       })
   }
   return true
-};
+}
 
-reactTreeWalker(app, visitor);
+reactTreeWalker(app, visitor).then(() => {
+  console.log(values); // [1, 2, 4, 3];
+});
 
-console.log(values); // [1, 2, 4, 3];
 ```
 
 ## FAQs