diff --git a/lib/routes/fanbox/utils.ts b/lib/routes/fanbox/utils.ts
index c7c757d30..846a700fe 100644
--- a/lib/routes/fanbox/utils.ts
+++ b/lib/routes/fanbox/utils.ts
@@ -166,7 +166,7 @@ async function parseDetail(i: PostDetailResponse['body']) {
 
 export function parseItem(item: PostItem) {
     return cache.tryGet(`fanbox-${item.id}-${item.updatedDatetime}`, async () => {
-        const postDetail = (await ofetch(`https://api.fanbox.cc/post.info?postId=${item.id}`, { headers: getHeaders() })) as PostDetailResponse;
+        const postDetail = (await ofetch(`https://api.fanbox.cc/post.info?postId=${item.id}`, { headers: { ...getHeaders(), 'User-Agent': config.trueUA } })) as PostDetailResponse;
         return {
             title: item.title || `No title`,
             description: await parseDetail(postDetail.body),