diff --git a/src/rpi-cpu2mqtt.py b/src/rpi-cpu2mqtt.py
index 1639172..fb5c8e6 100644
--- a/src/rpi-cpu2mqtt.py
+++ b/src/rpi-cpu2mqtt.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 # 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