diff --git a/config.go b/config.go
index b649da4..784cd9a 100644
--- a/config.go
+++ b/config.go
@@ -35,7 +35,7 @@ func NewConfig() (Config, error) {
 	fs.StringVar(&c.Cert.CRT, "crt", "", "path to .crt")
 	fs.StringVar(&c.Cert.Key, "key", "", "path to .key")
 	fs.IntVar(&c.Port, "p", 56112, "port to listen on")
-	f := fs.String("f", "/dev/null", `file of {domains:{com:{google:{to: scheme://host:port, basicAuth: u:p, redir: false}}}}`)
+	f := fs.String("f", "/dev/null", `file of {domains:{.google.com:{mail:{to: scheme://host:port, basicAuth: u:p, redir: false}}}}`)
 	if err := fs.Parse(os.Args[1:]); err != nil {
 		return c, err
 	}
diff --git a/main.go b/main.go
index 35ca439..decde89 100644
--- a/main.go
+++ b/main.go
@@ -175,8 +175,7 @@ func (c Config) basicAuth(w http.ResponseWriter, r *http.Request) bool {
 
 func (c Config) endpoint(r *http.Request) Endpoint {
 	key := c.key(r)
-	domain := strings.TrimPrefix(r.Host, key)
-	log.Printf("lookup %s.%s", domain, key)
+	domain := strings.Split(strings.TrimPrefix(r.Host, key), ":")[0]
 	m, ok := c.Domains[domain]
 	if !ok {
 		return Endpoint{}