diff --git a/nameserver.go b/nameserver.go
index 642f770..a329252 100644
--- a/nameserver.go
+++ b/nameserver.go
@@ -40,6 +40,7 @@ func generateQuery(entry *RRConfig, addr net.IP) string {
 	fmt.Fprintf(&q, "server %s\n", entry.Nameserver)
 	fmt.Fprintf(&q, "zone %s\n", entry.Zonename)
 	// TODO: check if addr is ipv4 or ipv6 (-> update A or AAAA)
+	fmt.Fprintf(&q, "delete %s. A\n", entry.Recordname)
 	fmt.Fprintf(&q, "add %s. %d A %s\n", entry.Recordname, entry.Ttl, addr.String())
 	fmt.Fprintf(&q, "send\n")