diff --git a/lib/posts.ts b/lib/posts.ts
index 5d6ef53..7535277 100644
--- a/lib/posts.ts
+++ b/lib/posts.ts
@@ -16,7 +16,7 @@ export interface PostMeta {
   readingTime: number
 }
 
-export interface Post extends PostMeta {}
+export type Post = PostMeta
 
 const getMdxFiles = cache(async () => {
   try {