diff --git a/pyrogram/client/types/messages_and_media/audio.py b/pyrogram/client/types/messages_and_media/audio.py
index 57731266..37f91992 100644
--- a/pyrogram/client/types/messages_and_media/audio.py
+++ b/pyrogram/client/types/messages_and_media/audio.py
@@ -30,7 +30,7 @@ class Audio(Object):
             Duration of the audio in seconds as defined by sender.
 
         thumb (:obj:`PhotoSize <pyrogram.PhotoSize>`, *optional*):
-            Audio thumbnail.
+            Thumbnail of the music file album cover.
 
         file_name (``str``, *optional*):
             Audio file name.