diff --git a/octoprint/daemon.py b/octoprint/daemon.py
index bc4ce678..958d6777 100644
--- a/octoprint/daemon.py
+++ b/octoprint/daemon.py
@@ -1,4 +1,8 @@
-"""Generic linux daemon base class for python 3.x."""
+"""
+Generic linux daemon base class for python 3.x
+
+Originally from http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/#c35
+"""
 
 import sys, os, time, atexit, signal