diff --git a/telebot/__init__.py b/telebot/__init__.py
index d54c55c..f1ad10e 100644
--- a/telebot/__init__.py
+++ b/telebot/__init__.py
@@ -482,7 +482,8 @@ class TeleBot:
         """
         return self.send_message(message.chat.id, text, reply_to_message_id=message.message_id, **kwargs)
 
-    def answer_inline_query(self, inline_query_id, results, cache_time=None, is_personal=None, next_offset=None):
+    def answer_inline_query(self, inline_query_id, results, cache_time=None, is_personal=None, next_offset=None,
+                            switch_pm_text=None, switch_pm_parameter=None):
         """
         Use this method to send answers to an inline query. On success, True is returned.
         No more than 50 results per query are allowed.
@@ -491,9 +492,13 @@ class TeleBot:
         :param cache_time: The maximum amount of time in seconds that the result of the inline query may be cached on the server.
         :param is_personal: Pass True, if results may be cached on the server side only for the user that sent the query.
         :param next_offset: Pass the offset that a client should send in the next query with the same text to receive more results.
+        :param switch_pm_parameter: If passed, clients will display a button with specified text that switches the user
+         to a private chat with the bot and sends the bot a start message with the parameter switch_pm_parameter
+        :param switch_pm_text: 	Parameter for the start message sent to the bot when user presses the switch button
         :return: True means success.
         """
-        return apihelper.answer_inline_query(self.token, inline_query_id, results, cache_time, is_personal, next_offset)
+        return apihelper.answer_inline_query(self.token, inline_query_id, results, cache_time, is_personal, next_offset,
+                                             switch_pm_text, switch_pm_parameter)
 
     def register_for_reply(self, message, callback):
         """
diff --git a/telebot/apihelper.py b/telebot/apihelper.py
index f37362f..842c699 100644
--- a/telebot/apihelper.py
+++ b/telebot/apihelper.py
@@ -372,7 +372,8 @@ def answer_callback_query(token, callback_query_id, text=None, show_alert=None):
     return _make_request(token, method_url, params=payload, method='post')
 
 
-def answer_inline_query(token, inline_query_id, results, cache_time=None, is_personal=None, next_offset=None):
+def answer_inline_query(token, inline_query_id, results, cache_time=None, is_personal=None, next_offset=None,
+                        switch_pm_text=None, switch_pm_parameter=None):
     method_url = 'answerInlineQuery'
     payload = {'inline_query_id': inline_query_id, 'results': _convert_inline_results(results)}
     if cache_time:
@@ -381,6 +382,10 @@ def answer_inline_query(token, inline_query_id, results, cache_time=None, is_per
         payload['is_personal'] = is_personal
     if next_offset:
         payload['next_offset'] = next_offset
+    if switch_pm_text:
+        payload['switch_pm_text'] = switch_pm_text
+    if switch_pm_parameter:
+        payload['switch_pm_parameter'] = switch_pm_parameter
     return _make_request(token, method_url, params=payload, method='post')