diff --git a/lib/posts.ts b/lib/posts.ts
index fa621ed..aec81b4 100644
--- a/lib/posts.ts
+++ b/lib/posts.ts
@@ -19,7 +19,7 @@ export interface PostData {
   content: string;
   readingTime: string;
   headings: Heading[];
-  wip?: boolean;
+  wip: boolean;
 }
 
 export interface PostMeta {
@@ -28,7 +28,7 @@ export interface PostMeta {
   title: string;
   description: string;
   readingTime: string;
-  wip?: boolean;
+  wip: boolean;
 }
 
 function extractHeadings(content: string): Heading[] {