diff --git a/packages/website/sidebars/sidebar.rules.js b/packages/website/sidebars/sidebar.rules.js
index 7fe7fff1ec43..b50758724110 100644
--- a/packages/website/sidebars/sidebar.rules.js
+++ b/packages/website/sidebars/sidebar.rules.js
@@ -62,12 +62,15 @@ function createCategory(label, rules, additionalItems = []) {
 module.exports = {
   someSidebar: [
     'README',
-    createCategory('Rules', emphasizedRules, [
-      createCategory('Formatting Rules', Array.from(formattingRules)),
-      createCategory('Deprecated Rules', [
-        ...Array.from(deprecatedRules),
-        ...paths,
+    {
+      ...createCategory('Rules', emphasizedRules, [
+        createCategory('Formatting Rules', Array.from(formattingRules)),
+        createCategory('Deprecated Rules', [
+          ...Array.from(deprecatedRules),
+          ...paths,
+        ]),
       ]),
-    ]),
+      collapsed: false,
+    },
   ],
 };