diff --git a/setup.py b/setup.py
index 305b8dd..3daf2e2 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,6 @@
 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
+# This file is based on https://github.com/kassoulet/soundconverter
 import os
 import DistUtilsExtra.auto