diff --git a/telebot/types.py b/telebot/types.py
index defe601..9cc9162 100644
--- a/telebot/types.py
+++ b/telebot/types.py
@@ -117,7 +117,6 @@ class Update(JsonDeserializable):
         self.shipping_query = shipping_query
         self.pre_checkout_query = pre_checkout_query
         self.poll = poll
-        self.poll_answer = poll_answer
 
 
 class WebhookInfo(JsonDeserializable):
@@ -223,7 +222,7 @@ class Chat(JsonDeserializable):
     def __init__(self, id, type, title=None, username=None, first_name=None,
                  last_name=None, all_members_are_administrators=None,
                  photo=None, description=None, invite_link=None,
-                 pinned_message=None, permissions=None, slow_mode_delay=None, 
+                 pinned_message=None, permissions=None, slow_mode_delay=None,
                  sticker_set_name=None, can_set_sticker_set=None):
         self.id = id
         self.type = type
@@ -859,10 +858,11 @@ class ReplyKeyboardMarkup(JsonSerializable):
 
 
 class KeyboardButton(Dictionaryable, JsonSerializable):
-    def __init__(self, text, request_contact=None, request_location=None):
+    def __init__(self, text, request_contact=None, request_location=None, request_poll=None):
         self.text = text
         self.request_contact = request_contact
         self.request_location = request_location
+        self.request_poll = request_poll
 
     def to_json(self):
         return json.dumps(self.to_dict())
@@ -873,9 +873,19 @@ class KeyboardButton(Dictionaryable, JsonSerializable):
             json_dict['request_contact'] = self.request_contact
         if self.request_location:
             json_dict['request_location'] = self.request_location
+        if self.request_poll:
+            json_dict['request_poll'] = self.request_poll.to_dict()
         return json_dict
 
 
+class KeyboardButtonPollType(Dictionaryable):
+    def __init__(self, type=''):
+        self.type = type
+
+    def to_dict(self):
+        return {'type': self.type}
+
+
 class InlineKeyboardMarkup(Dictionaryable, JsonSerializable):
     def __init__(self, row_width=3):
         """
diff --git a/tests/test_types.py b/tests/test_types.py
index 18337ed..cc0c4cf 100644
--- a/tests/test_types.py
+++ b/tests/test_types.py
@@ -188,3 +188,11 @@ def test_json_poll_answer():
     assert poll_answer.poll_id == '5895675970559410186'
     assert isinstance(poll_answer.user, types.User)
     assert poll_answer.options_ids == [1]
+
+
+def test_KeyboardButtonPollType():
+    markup = types.ReplyKeyboardMarkup()
+    markup.add(types.KeyboardButton('send me a poll', request_poll=types.KeyboardButtonPollType(type='quiz')))
+    json_str = markup.to_json()
+    assert 'request_poll' in json_str
+    assert 'quiz' in json_str