diff --git a/docker/containers/rbn-to-mqtt.dockerfile b/docker/containers/rbn-to-mqtt.dockerfile
index a42bfd1..16d5e12 100644
--- a/docker/containers/rbn-to-mqtt.dockerfile
+++ b/docker/containers/rbn-to-mqtt.dockerfile
@@ -8,7 +8,7 @@ ENV MQTT_HOST=
 RUN pip install paho-mqtt
 
 # The script itself
-COPY ./scripts/rbn-to-mqtt /rbn-to-mqtt
+COPY ./scripts/rbn-to-mqtt /rbn-to-mqtt.py
 
 # Run config
-CMD ["python", "/rbn-to-mqtt", "${MODE}", "${MQTT_HOST}"]
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+CMD ["sh", "-c", "python /rbn-to-mqtt.py $MODE $MQTT_HOST"]
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