diff --git a/telebot/__init__.py b/telebot/__init__.py
index 1d2b826..d6c16e1 100644
--- a/telebot/__init__.py
+++ b/telebot/__init__.py
@@ -503,8 +503,8 @@ class TeleBot:
                                  parse_mode, disable_notification))
 
     def send_audio(self, chat_id, audio, caption=None, duration=None, performer=None, title=None,
-                   reply_to_message_id=None,
-                   reply_markup=None, parse_mode=None, disable_notification=None, timeout=None):
+                   reply_to_message_id=None, reply_markup=None, parse_mode=None, disable_notification=None,
+                   timeout=None):
         """
         Use this method to send audio files, if you want Telegram clients to display them in the music player. Your audio must be in the .mp3 format.
         :param chat_id:Unique identifier for the message recipient
@@ -545,7 +545,8 @@ class TeleBot:
         :param data:
         :param reply_to_message_id:
         :param reply_markup:
-        :param parse_mode
+        :param parse_mode:
+        :param disable_notification:
         :return: API reply.
         """
         return types.Message.de_json(
diff --git a/telebot/apihelper.py b/telebot/apihelper.py
index c0ec1b8..a02c8e4 100644
--- a/telebot/apihelper.py
+++ b/telebot/apihelper.py
@@ -460,8 +460,8 @@ def send_audio(token, chat_id, audio, caption=None, duration=None, performer=Non
     return _make_request(token, method_url, params=payload, files=files, method='post')
 
 
-def send_data(token, chat_id, data, data_type, reply_to_message_id=None, reply_markup=None, disable_notification=None,
-              timeout=None, parse_mode=None, caption=None):
+def send_data(token, chat_id, data, data_type, reply_to_message_id=None, reply_markup=None, parse_mode=None,
+              disable_notification=None, timeout=None, caption=None):
     method_url = get_method_by_type(data_type)
     payload = {'chat_id': chat_id}
     files = None
diff --git a/tests/test_telebot.py b/tests/test_telebot.py
index 5a5599d..89b6f7a 100644
--- a/tests/test_telebot.py
+++ b/tests/test_telebot.py
@@ -467,4 +467,10 @@ class TestTeleBot:
         assert len(result) == 2
         assert result[0].media_group_id is not None
         assert result[0].caption_entities[0].type == 'bold'
-        assert result[1].caption_entities[0].type == 'italic'
\ No newline at end of file
+        assert result[1].caption_entities[0].type == 'italic'
+
+    def test_send_document_formating_caption(self):
+        file_data = open('../examples/detailed_example/kitten.jpg', 'rb')
+        tb = telebot.TeleBot(TOKEN)
+        ret_msg = tb.send_document(CHAT_ID, file_data, caption='_italic_', parse_mode='Markdown')
+        assert ret_msg.caption_entities[0].type == 'italic'