diff --git a/quartz/plugins/emitters/contentIndex.ts b/quartz/plugins/emitters/contentIndex.ts
index 47a84270a..fa8c2c9d4 100644
--- a/quartz/plugins/emitters/contentIndex.ts
+++ b/quartz/plugins/emitters/contentIndex.ts
@@ -133,7 +133,7 @@ export const ContentIndex: QuartzEmitterPlugin<Partial<Options>> = (opts) => {
         )
       }
 
-      const fp = path.join("static", "contentIndex") as FullSlug
+      const fp = joinSegments("static", "contentIndex") as FullSlug
       const simplifiedIndex = Object.fromEntries(
         Array.from(linkIndex).map(([slug, content]) => {
           // remove description and from content index as nothing downstream