diff --git a/morty.go b/morty.go
index de92521..52e4af7 100644
--- a/morty.go
+++ b/morty.go
@@ -1041,7 +1041,6 @@ func main() {
 	cfg.Debug = *flag.Bool("debug", cfg.Debug, "Debug mode")
 	cfg.RequestTimeout = *flag.Uint("timeout", cfg.RequestTimeout, "Request timeout")
 	version := flag.Bool("version", false, "Show version")
-	requestTimeout := flag.Uint("timeout", 2, "Request timeout")
 	socks5 := flag.String("socks5", "", "SOCKS5 proxy")
 	flag.Parse()
 
@@ -1050,10 +1049,6 @@ func main() {
 		return
 	}
 
-	if *ipv6 {
-		CLIENT.DialDualStack = true
-	}
-
 	if *socks5 != "" {
 		// this disables CLIENT.DialDualStack
 		CLIENT.Dial = fasthttpproxy.FasthttpSocksDialer(*socks5)