diff --git a/telethon/_client/telegramclient.py b/telethon/_client/telegramclient.py
index 3a39fb28..d78b0ce6 100644
--- a/telethon/_client/telegramclient.py
+++ b/telethon/_client/telegramclient.py
@@ -2664,6 +2664,7 @@ class TelegramClient:
             request_retries: int = 4,
             flood_sleep_threshold: int = 60,
             # Update handling.
+            catch_up: bool = False,
             receive_updates: bool = True,
             max_queued_updates: int = 100,
     ):