diff --git a/certbot-dns-auth.sh b/certbot-dns-auth.sh
new file mode 100755
index 0000000..d919891
--- /dev/null
+++ b/certbot-dns-auth.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+python update-record.py -r TXT  _acme-challenge.${CERTBOT_DOMAIN} $CERTBOT_VALIDATION
diff --git a/update-record.py b/update-record.py
index 0c57254..a493ded 100755
--- a/update-record.py
+++ b/update-record.py
@@ -7,9 +7,8 @@
 #############################################################################
 ###### This is an example of how to use the inwx class #######
 
-from inwx.inwx import domrobot, prettyprint
+from inwx.inwx import domrobot#, prettyprint
 from inwx.configuration import get_account_data
-import sys
 import argparse
 
 
@@ -51,7 +50,7 @@
 	subId = -1
 	ret = inwx_conn.nameserver.info({'domain': domain})
 	records = ret['resData']['record']
-	
+
 	for r in records:
 		if (r['name'] == args.domain):
 			subId = r['id']
@@ -67,7 +66,7 @@
 	# end if
 
 	if (subId < 0):
-		ret = inwx_conn.nameserver.createRecord({'domain': domain, 'name': sub, 'type': args.record_type,'content': str(args.content), 'ttl': args.ttl})
+		ret = inwx_conn.nameserver.createRecord({'domain': domain, 'name': sub, 'type': args.record_type, 'content': str(args.content), 'ttl': args.ttl})
 	else:
 		ret = inwx_conn.nameserver.updateRecord({'id': subId, 'type': args.record_type, 'content': str(args.content), 'ttl': args.ttl})
 	# end if
@@ -88,7 +87,7 @@
 
 	parser.add_argument('-c', '--config_file', metavar='path', default='./conf.cfg', help='path to configuration file')
 	parser.add_argument('-t', '--ttl', default=3600, type=int, help='TTL (time to live) of the nameserver record in seconds (default 3600)')
-	parser.add_argument('-s', '--config_section', metavar='section', default='ote', choices=['live', 'ote'], help='configuration section (live, ote)')
+	parser.add_argument('-s', '--config_section', metavar='section', default='ote', choices=['live', 'ote'], help='configuration section (live, ote) default: ote')
 	parser.add_argument('-l', '--language', metavar='lang', default='en', choices=['de', 'en'], help='answer language (de, en)')
 	parser.add_argument('-v', '--verbose', action='store_true', help='verbose')
 	parser.add_argument('-d', '--debug', action='store_true', help='debug')