diff --git a/request.go b/request.go
index 0ec2ead..5929ba5 100644
--- a/request.go
+++ b/request.go
@@ -153,7 +153,7 @@ func (s *Server) handleConnect(conn conn, req *Request) error {
 	}
 
 	// Attempt to connect
-	addr := fmt.Sprintf("%v:%d", req.realDestAddr.IP, req.realDestAddr.Port)
+	addr := (&net.TCPAddr{IP: req.realDestAddr.IP, Port: req.realDestAddr.Port}).String()
 	dial := s.config.Dial
 	if dial == nil {
 		dial = net.Dial