diff --git a/theme/layouts/default.hbs b/theme/layouts/default.hbs
index 24a7c8e6..22797f6f 100644
--- a/theme/layouts/default.hbs
+++ b/theme/layouts/default.hbs
@@ -18,6 +18,7 @@
 	<meta property="og:description" content="VS Code API 是一系列你可以在 Visual Studio Code 扩展中调用的 JavaScript API，这个站点列出了扩展开发者可以使用的所有 vscode api 中文文档，是 vscode 插件开发必备。">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <link rel="shortcut icon" href="https://code.visualstudio.com/favicon.ico" sizes="128x128">
+	<link rel='canonical' href='https://vscode-api-cn.js.org/' />
     <link rel="stylesheet" href="{{relativeURL "assets/css/main.css"}}">
     <script async src="{{relativeURL "assets/js/search.js"}}" id="search-script"></script>
 	{{!-- 谷歌广告 --}}