diff --git a/README.md b/README.md
index 061cf74..0f3118d 100644
--- a/README.md
+++ b/README.md
@@ -276,7 +276,7 @@ class Clickable extends React.Component {
 <br />
   render() {
     const {clicks} = this.state;
-    const {ket} = this.props;
+    const {key} = this.props;
 <br />
     return React.createElement(
       'button', {