diff --git a/src/bitmessageqt/sound.py b/src/bitmessageqt/sound.py
index 9c86a9a4..33b4c500 100644
--- a/src/bitmessageqt/sound.py
+++ b/src/bitmessageqt/sound.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+"""Sound Module"""
 
 # sound type constants
 SOUND_NONE = 0
@@ -12,10 +13,12 @@ SOUND_CONNECTION_GREEN = 5
 # returns true if the given sound category is a connection sound
 # rather than a received message sound
 def is_connection_sound(category):
+    """Check if sound type is related to connectivity"""
     return category in (
         SOUND_CONNECTED,
         SOUND_DISCONNECTED,
         SOUND_CONNECTION_GREEN
     )
 
+
 extensions = ('wav', 'mp3', 'oga')