From dedb08b75903efeafc983ee923245af1c37f3e44 Mon Sep 17 00:00:00 2001
From: Kishi85 <git@eightyfive.net>
Date: Fri, 15 Feb 2019 13:44:12 +0100
Subject: [PATCH] dns.nsupdate: correctly delete a specific TXT value from DNS

---
 modes/dns/nsupdate.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modes/dns/nsupdate.py b/modes/dns/nsupdate.py
index 1e594be..336e11d 100644
--- a/modes/dns/nsupdate.py
+++ b/modes/dns/nsupdate.py
@@ -150,6 +150,6 @@ class ChallengeHandler(DNSChallengeHandler):
     def remove_dns_record(self, domain, txtvalue):
         zone, nameserverip = self._determine_zone_and_nameserverip(domain)
         update = dns.update.Update(zone, keyring=self.keyring, keyalgorithm=self.keyalgorithm)
-        update.delete(domain, 'TXT', txtvalue)
+        update.delete(domain, dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.TXT, txtvalue))
         print('Deleting \'{} 60 IN TXT "{}"\' from {}'.format(domain, txtvalue, nameserverip))
         dns.query.tcp(update, nameserverip)