diff --git a/aiogram/types/reply_keyboard.py b/aiogram/types/reply_keyboard.py
index 59804f08..6aa4ad24 100644
--- a/aiogram/types/reply_keyboard.py
+++ b/aiogram/types/reply_keyboard.py
@@ -110,10 +110,12 @@ class KeyboardButton(base.TelegramObject):
 
     def __init__(self, text: base.String,
                  request_contact: base.Boolean = None,
-                 request_location: base.Boolean = None):
+                 request_location: base.Boolean = None,
+                 request_poll: KeyboardButtonPollType = None):
         super(KeyboardButton, self).__init__(text=text,
                                              request_contact=request_contact,
-                                             request_location=request_location)
+                                             request_location=request_location,
+                                             request_poll=request_poll)
 
 
 class ReplyKeyboardRemove(base.TelegramObject):