diff --git a/src/api/routes/channels/#channel_id/post-data.ts b/src/api/routes/channels/#channel_id/post-data.ts
index 6f1f530e1..f1727109f 100644
--- a/src/api/routes/channels/#channel_id/post-data.ts
+++ b/src/api/routes/channels/#channel_id/post-data.ts
@@ -61,6 +61,7 @@ router.post(
                 where: {
                     id: In(threads.map(({ id }) => id)),
                 },
+                relations: ["author"],
             }),
             Member.find({
                 where: {