diff --git a/aiogram/dispatcher/event/telegram.py b/aiogram/dispatcher/event/telegram.py
index ff34121f..e896444c 100644
--- a/aiogram/dispatcher/event/telegram.py
+++ b/aiogram/dispatcher/event/telegram.py
@@ -130,7 +130,7 @@ class TelegramEventObserver:
         if ignore_default and not full_config:
             return bound_filters
 
-        filter_types = (type(f) for f in filters)
+        filter_types = tuple(type(f) for f in filters)
 
         validation_errors = []
         for bound_filter in self._resolve_filters_chain():