diff --git a/darkwater/PCA9685.cpp b/darkwater/PCA9685.cpp
index 87c371b..d88a70e 100644
--- a/darkwater/PCA9685.cpp
+++ b/darkwater/PCA9685.cpp
@@ -1,6 +1,6 @@
 /*
 PCA9685 driver code is placed under the BSD license.
-Written by Team Dark Water (team@darkwater.io) based on the Adafruit Python Library
+Written by Team Dark Water (team@darkwater.io) based on the Adafruit Python Library and the Emlid PCA9685 library
 Copyright (c) 2014, Dark Water
 All rights reserved.