diff --git a/website/docs/using-plugins.md b/website/docs/using-plugins.md
index 33e05c32a14e..6d031f889bc7 100644
--- a/website/docs/using-plugins.md
+++ b/website/docs/using-plugins.md
@@ -389,12 +389,14 @@ If you have installed `@docusaurus/preset-classic`, you don't need to install it
 ```js title="docusaurus.config.js"
 module.exports = {
   plugins: [
-    '@docusaurus/plugin-sitemap',
-    {
-      cacheTime: 600 * 1000, // 600 sec - cache purge period
-      changefreq: 'weekly',
-      priority: 0.5,
-    },
+    [
+      '@docusaurus/plugin-sitemap',
+      {
+        cacheTime: 600 * 1000, // 600 sec - cache purge period
+        changefreq: 'weekly',
+        priority: 0.5,
+      },
+    ],
   ],
 };
 ```
diff --git a/website/versioned_docs/version-2.0.0-alpha.50/using-plugins.md b/website/versioned_docs/version-2.0.0-alpha.50/using-plugins.md
index bce6ff9e89eb..ebb7ee103234 100644
--- a/website/versioned_docs/version-2.0.0-alpha.50/using-plugins.md
+++ b/website/versioned_docs/version-2.0.0-alpha.50/using-plugins.md
@@ -380,12 +380,14 @@ If you have installed `@docusaurus/preset-classic`, you don't need to install it
 ```js title="docusaurus.config.js"
 module.exports = {
   plugins: [
-    '@docusaurus/plugin-sitemap',
-    {
-      cacheTime: 600 * 1000, // 600 sec - cache purge period
-      changefreq: 'weekly',
-      priority: 0.5,
-    },
+    [
+      '@docusaurus/plugin-sitemap',
+      {
+        cacheTime: 600 * 1000, // 600 sec - cache purge period
+        changefreq: 'weekly',
+        priority: 0.5,
+      },
+    ]
   ],
 };
 ```