diff --git a/proxy/socks5/socks5.go b/proxy/socks5/socks5.go
index 2b17291..0de87f9 100644
--- a/proxy/socks5/socks5.go
+++ b/proxy/socks5/socks5.go
@@ -182,7 +182,7 @@ func (s *Socks5) ListenAndServeUDP() {
 				continue
 			}
 
-			lpc, nextHop, err := s.dialer.DialUDP("udp", c.tgtAddr.String())
+			lpc, nextHop, err := s.proxy.DialUDP("udp", c.tgtAddr.String())
 			if err != nil {
 				log.F("[socks5-udp] remote dial error: %v", err)
 				continue
diff --git a/proxy/ss/ss.go b/proxy/ss/ss.go
index a3049f9..5516bee 100644
--- a/proxy/ss/ss.go
+++ b/proxy/ss/ss.go
@@ -196,7 +196,7 @@ func (s *SS) ListenAndServeUDP() {
 		var pc *PktConn
 		v, ok := nm.Load(raddr.String())
 		if !ok && v == nil {
-			lpc, nextHop, err := s.dialer.DialUDP("udp", c.tgtAddr.String())
+			lpc, nextHop, err := s.proxy.DialUDP("udp", c.tgtAddr.String())
 			if err != nil {
 				log.F("[ss-udp] remote dial error: %v", err)
 				continue