diff --git a/matrix_appservice_kakaotalk/portal.py b/matrix_appservice_kakaotalk/portal.py
index e4c3019..3b4c5cc 100644
--- a/matrix_appservice_kakaotalk/portal.py
+++ b/matrix_appservice_kakaotalk/portal.py
@@ -1098,7 +1098,7 @@ class Portal(DBPortal, BasePortal):
         message_text: str,
         **_
     ) -> list[EventID]:
-        content = await kakaotalk_to_matrix(message_text)
+        content = await kakaotalk_to_matrix(message_text, attachment.mentions)
         await self._add_remote_reply(content, attachment)
         return [await self._send_message(intent, content, timestamp=timestamp)]