diff --git a/README.md b/README.md
index 7cd077b..360af78 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,9 @@
 
 ### python
 
+#### pip3
 - paho-mqtt
 - gpiozero
 
+#### package
+- python3-rpi.gpio
diff --git a/piValues2MQTT.py b/piValues2MQTT.py
index 3e03ff7..59508f5 100755
--- a/piValues2MQTT.py
+++ b/piValues2MQTT.py
@@ -160,7 +160,7 @@
 	# debug output
 	logger.debug("server: %s" ,options.server)
 	logger.debug("port: %i", options.port)
-	logger.debug("bsaetopic: %s", options.basetopic)
+	logger.debug("basetopic: %s", options.basetopic)
 	logger.debug('polling interval: %i seconds', options.interval)
 
 	# connect to MQTT server
@@ -173,6 +173,7 @@
 	# forever loop
 	hostName = platform.node()
 	mqttTopic = options.basetopic + '/' + hostName
+	logger.debug("mqtt topic: %s", mqttTopic)
 	mqttTopic = mqttTopic.replace(':', '-')
 	lastPoll = 0
 	try: