diff --git a/components/menu/demo/horizontal.md b/components/menu/demo/horizontal.md
index 05a30295ee..b1d5c76853 100755
--- a/components/menu/demo/horizontal.md
+++ b/components/menu/demo/horizontal.md
@@ -33,7 +33,6 @@ const App = React.createClass({
   render() {
     return (
       <Menu
-        theme="dark"
         onClick={this.handleClick}
         selectedKeys={[this.state.current]}
         mode="horizontal"