diff --git a/packages/create-docusaurus/templates/classic/docusaurus.config.js b/packages/create-docusaurus/templates/classic/docusaurus.config.js
index 5cf4b168d330..cbea7b1b4b1b 100644
--- a/packages/create-docusaurus/templates/classic/docusaurus.config.js
+++ b/packages/create-docusaurus/templates/classic/docusaurus.config.js
@@ -19,6 +19,14 @@ const config = {
   organizationName: 'facebook', // Usually your GitHub org/user name.
   projectName: 'docusaurus', // Usually your repo name.
 
+  // Even if you don't use internalization, you can use this field to set useful
+  // metadata like html lang. For example, if your site is Chinese, you may want
+  // to replace "en" with "zh-Hans".
+  i18n: {
+    defaultLocale: 'en',
+    locales: ['en'],
+  },
+
   presets: [
     [
       'classic',