diff --git a/aiogram/dispatcher/event/telegram.py b/aiogram/dispatcher/event/telegram.py
index cb4039c7..4a370074 100644
--- a/aiogram/dispatcher/event/telegram.py
+++ b/aiogram/dispatcher/event/telegram.py
@@ -40,7 +40,6 @@ class TelegramEventObserver:
         Register filter for all handlers of this event observer
 
         :param filters: positional filters
-        :param bound_filters: keyword filters
         """
         if self._handler.filters is None:
             self._handler.filters = []