diff --git a/dnsapi/dns_1984hosting.sh b/dnsapi/dns_1984hosting.sh
index 6fcd2269..2987283e 100755
--- a/dnsapi/dns_1984hosting.sh
+++ b/dnsapi/dns_1984hosting.sh
@@ -49,6 +49,7 @@ dns_1984hosting_add() {
   postdata="$postdata&type=TXT"
   postdata="$postdata&host=$_sub_domain"
   postdata="$postdata&ttl=900"
+  # without setting the priority, validaton will fail.
   postdata="$postdata&priority=10"
   postdata="$postdata&rdata=%22$value%22"
   _debug2 postdata "$postdata"