diff --git a/src/rpi-cpu2mqtt.py b/src/rpi-cpu2mqtt.py
index 696eb52..0ca1774 100644
--- a/src/rpi-cpu2mqtt.py
+++ b/src/rpi-cpu2mqtt.py
@@ -1,4 +1,4 @@
-# Python 2 script to check cpu load, cpu temperature and free space,
+# Python (runs on 2 and 3) script to check cpu load, cpu temperature and free space,
 # on a Raspberry Pi computer and publish the data to a MQTT server.
 # RUN pip install paho-mqtt
 # RUN sudo apt-get install python-pip