diff --git a/http.go b/http.go
index ba8a937..2e7e3cf 100644
--- a/http.go
+++ b/http.go
@@ -25,8 +25,7 @@ type HTTP struct {
 	password string
 	xff      bool // X-Forwarded-For
 	xsi      bool // X-Server-IP
-
-	selfip string
+	selfip   string
 }
 
 // NewHTTP returns a http proxy.
@@ -213,7 +212,7 @@ func (s *HTTP) servHTTPS(method, requestURI, proto string, c net.Conn) {
 func (s *HTTP) Addr() string { return s.addr }
 
 // NextDialer returns the next dialer
-func (s *HTTP) NextDialer(dstAddr string) Dialer { return s.dialer }
+func (s *HTTP) NextDialer(dstAddr string) Dialer { return s.dialer.NextDialer(dstAddr) }
 
 // Dial connects to the address addr on the network net via the proxy.
 func (s *HTTP) Dial(network, addr string) (net.Conn, error) {
diff --git a/mixed.go b/mixed.go
index 85e20a7..fc29de6 100644
--- a/mixed.go
+++ b/mixed.go
@@ -20,8 +20,8 @@ var httpMethods = [...][]byte{
 // MixedProxy struct
 type MixedProxy struct {
 	dialer Dialer
-
 	addr   string
+
 	http   *HTTP
 	socks5 *SOCKS5
 }
diff --git a/socks5.go b/socks5.go
index 71c47c5..b4c1e5a 100644
--- a/socks5.go
+++ b/socks5.go
@@ -219,7 +219,7 @@ func (s *SOCKS5) ListenAndServeUDP() {
 func (s *SOCKS5) Addr() string { return s.addr }
 
 // NextDialer returns the next dialer
-func (s *SOCKS5) NextDialer(dstAddr string) Dialer { return s.dialer }
+func (s *SOCKS5) NextDialer(dstAddr string) Dialer { return s.dialer.NextDialer(dstAddr) }
 
 // Dial connects to the address addr on the network net via the SOCKS5 proxy.
 func (s *SOCKS5) Dial(network, addr string) (net.Conn, error) {
diff --git a/ss.go b/ss.go
index 4e6e612..617af55 100644
--- a/ss.go
+++ b/ss.go
@@ -204,7 +204,7 @@ func ListCipher() string {
 func (s *SS) Addr() string { return s.addr }
 
 // NextDialer returns the next dialer
-func (s *SS) NextDialer(dstAddr string) Dialer { return s.dialer }
+func (s *SS) NextDialer(dstAddr string) Dialer { return s.dialer.NextDialer(dstAddr) }
 
 // Dial connects to the address addr on the network net via the proxy.
 func (s *SS) Dial(network, addr string) (net.Conn, error) {