diff --git a/aiogram/types/reply_keyboard.py b/aiogram/types/reply_keyboard.py
index ced20417..ffe07ae1 100644
--- a/aiogram/types/reply_keyboard.py
+++ b/aiogram/types/reply_keyboard.py
@@ -111,11 +111,13 @@ class KeyboardButton(base.TelegramObject):
     def __init__(self, text: base.String,
                  request_contact: base.Boolean = None,
                  request_location: base.Boolean = None,
-                 request_poll: KeyboardButtonPollType = None):
+                 request_poll: KeyboardButtonPollType = None,
+                 **kwargs):
         super(KeyboardButton, self).__init__(text=text,
                                              request_contact=request_contact,
                                              request_location=request_location,
-                                             request_poll=request_poll)
+                                             request_poll=request_poll,
+                                             **kwargs)
 
 
 class ReplyKeyboardRemove(base.TelegramObject):