diff --git a/src/takopi/telegram/loop.py b/src/takopi/telegram/loop.py
index 5c00aed..e23b6a5 100644
--- a/src/takopi/telegram/loop.py
+++ b/src/takopi/telegram/loop.py
@@ -819,6 +819,7 @@ async def run_main_loop(
                     )
                     if text is None:
                         continue
+                    text = f"(voice transcribed) {text}"
                 topic_key = (
                     _topic_key(msg, cfg, scope_chat_ids=topics_chat_ids)
                     if topic_store is not None