diff --git a/aiogram/types/reply_keyboard.py b/aiogram/types/reply_keyboard.py
index 271906bd..30a6017c 100644
--- a/aiogram/types/reply_keyboard.py
+++ b/aiogram/types/reply_keyboard.py
@@ -94,7 +94,7 @@ class ReplyKeyboardMarkup(base.TelegramObject):
         return self.add(other)
 
     def __add__(self, other):
-        return ReplyKeyboardMarkup(
+        return self.__class__(
             keyboard=self.keyboard + other.keyboard, resize_keyboard=self.resize_keyboard,
             one_time_keyboard=self.one_time_keyboard, selective=self.selective,
             row_width=self.row_width