diff --git a/src/shared/shared.ts b/src/shared/shared.ts
index 959d470c..e769c32e 100644
--- a/src/shared/shared.ts
+++ b/src/shared/shared.ts
@@ -21,7 +21,7 @@ export const notFoundPageData: PageData = {
   title: '404',
   description: 'Not Found',
   headers: [],
-  frontmatter: {},
+  frontmatter: { sidebar: false },
   lastUpdated: 0
 }