diff --git a/src/slack/actions.ts b/src/slack/actions.ts
index c108ebe727b..9c2b2cc9e85 100644
--- a/src/slack/actions.ts
+++ b/src/slack/actions.ts
@@ -151,6 +151,7 @@ export async function sendSlackMessage(
     accountId: opts.accountId,
     token: opts.token,
     mediaUrl: opts.mediaUrl,
+    threadTs: opts.threadTs,
     client: opts.client,
     threadTs: opts.threadTs,
   });