diff --git a/src/api/routes/channels/#channel_id/messages/#message_id/threads.ts b/src/api/routes/channels/#channel_id/messages/#message_id/threads.ts
index 65e676d4d..14d921356 100644
--- a/src/api/routes/channels/#channel_id/messages/#message_id/threads.ts
+++ b/src/api/routes/channels/#channel_id/messages/#message_id/threads.ts
@@ -32,6 +32,7 @@ router.post(
     "/",
     route({
         requestBody: "MessageThreadCreationSchema",
+        permission: "CREATE_PUBLIC_THREADS",
         responses: {
             200: {},
             403: {},