diff --git a/apps/backend/src/routes/post.ts b/apps/backend/src/routes/post.ts
index 21a0a87..d17d926 100644
--- a/apps/backend/src/routes/post.ts
+++ b/apps/backend/src/routes/post.ts
@@ -438,7 +438,7 @@ export default new Elysia({ prefix: "/post" })
                 if (savedCount > 0) {
                     await sendDiscordNotification({
                         title: pixivData.title || "Pixiv Artwork",
-                        url: savedIds[0] ? `${config.base_url}/detail/${savedIds[0]}` : body.url,
+                        url: savedIds[0] ? `${config.server.base_url}/detail/${savedIds[0]}` : body.url,
                         author: body.author ? body.author : (pixivData.author_name || "unknown"),
                         tags: normalizedTags,
                         imageUrl: mediaUrls[0],