diff --git a/main.go b/main.go
index d546d3e..93e409d 100755
--- a/main.go
+++ b/main.go
@@ -49,10 +49,11 @@ curl "https://www.namesilo.com/api/dnsUpdateRecord?version=1&type=xml&key=7a26bd
 */
 
 func main() {
-	domain := flag.String("domain", "blapointe.com", "domain to modify")
-	subdomain := flag.String("prefix", "*.home.", "subdomain to modify")
+	domain := flag.String("domain", "blapointe.com", "domain to point to this IP")
+	subdomain := flag.String("prefix", "*.home.", "subdomain to point to this IP, empty str ok")
+	apikey := flag.String("apikey", "7a26bd4b7aedbc6c44f56af38", "namesilo api key")
 	flag.Parse()
-	uri := "https://www.namesilo.com/api/dnsListRecords?version=1&type=xml&key=7a26bd4b7aedbc6c44f56af38&domain=" + *domain
+	uri := "https://www.namesilo.com/api/dnsListRecords?version=1&type=xml&key=" + *apikey + "&domain=" + *domain
 	log.Printf("uri=%s", uri)
 	resp, err := http.Get(uri)
 	if err != nil {
@@ -87,7 +88,7 @@ func main() {
 			rrid := v.RecordID
 			ip := rawraw.Namesilo.Request.IP
 			log.Println(rrid, ip)
-			url := fmt.Sprintf("https://www.namesilo.com/api/dnsUpdateRecord?version=1&type=xml&key=7a26bd4b7aedbc6c44f56af38&domain="+*domain+"&rrid=%s&rrhost="+strings.TrimRight(*subdomain, ".")+"&rrvalue=%s&rrttl=3600", rrid, ip)
+			url := fmt.Sprintf("https://www.namesilo.com/api/dnsUpdateRecord?version=1&type=xml&key="+*apikey+"&domain="+*domain+"&rrid=%s&rrhost="+strings.TrimRight(*subdomain, ".")+"&rrvalue=%s&rrttl=3600", rrid, ip)
 			log.Printf("updating via %s", url)
 			resp, err := http.Get(url)
 			b, _ := ioutil.ReadAll(resp.Body)