diff --git a/update_ip.sh b/update_ip.sh
index be3ea54..10e319c 100755
--- a/update_ip.sh
+++ b/update_ip.sh
@@ -7,6 +7,7 @@ host=desktop
 secret=""
 
 ip=$(wget -q -O - http://treehouse.org.za/ip)
+set_ip=$(dig +short ${host}.${zone})
 
 if [ -z ${ip} ] || [ -z ${cache} ]; then
 	exit;
@@ -16,7 +17,7 @@ if [ -f "${HOME}/${cache}" ]; then
 	old_ip=$(cat "${HOME}/${cache}")
 fi
 
-if [ "${ip}" = "${old_ip}" ]; then
+if [ "${set_ip}" = "${ip}" ] && [ "${ip}" = "${old_ip}" ]; then
 	exit;
 else
 	rm -f "${HOME}/${cache}"