diff --git a/README-zh.md b/README-zh.md
index 1e821c2..bc713b3 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -22,7 +22,7 @@ Usage:
   torsniff [flags]
 
 Flags:
-  -a, --addr string        listen on given address (default "0.0.0.0")
+  -a, --addr string        listen on given address (default all, ipv4 and ipv6)
   -d, --dir string         the directory to store the torrents (default "$HOME/torrents")
   -h, --help               help for torsniff
   -f, --friends int        max fiends to make with per second (default 500)
diff --git a/README.md b/README.md
index bdde520..41f23fe 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Usage:
   torsniff [flags]
 
 Flags:
-  -a, --addr string        listen on given address (default "0.0.0.0")
+  -a, --addr string        listen on given address (default all, ipv4 and ipv6)
   -d, --dir string         the directory to store the torrents (default "$HOME/torrents")
   -h, --help               help for torsniff
   -f, --friends int        max fiends to make with per second (default 500)
diff --git a/build.sh b/build.sh
index 89502d3..9fc24cd 100755
--- a/build.sh
+++ b/build.sh
@@ -2,7 +2,7 @@
 GOARCH=amd64 GOOS=linux go build -o releases/torsniff-${VERSION}-linux-amd64
 GOARCH=386 GOOS=linux go build -o releases/torsniff-${VERSION}-linux-386
 
-GOARCH=amd64 GOOS=windows go build -o releases/torsniff-${VERSION}-windows-amd64
-GOARCH=386 GOOS=windows go build -o releases/torsniff-${VERSION}-windows-386
+GOARCH=amd64 GOOS=windows go build -o releases/torsniff-${VERSION}-windows-amd64.exe
+GOARCH=386 GOOS=windows go build -o releases/torsniff-${VERSION}-windows-386.exe
 
 GOARCH=amd64 GOOS=darwin go build -o releases/torsniff-${VERSION}-darwin-amd64
diff --git a/dht.go b/dht.go
index ab0be77..fdc8fd5 100644
--- a/dht.go
+++ b/dht.go
@@ -155,7 +155,7 @@ type dht struct {
 }
 
 func newDHT(laddr string, maxFriendsPerSec int) (*dht, error) {
-	conn, err := net.ListenPacket("udp4", laddr)
+	conn, err := net.ListenPacket("udp", laddr)
 	if err != nil {
 		return nil, err
 	}
@@ -277,7 +277,7 @@ func (d *dht) findNode(to string, target nodeID) {
 		"target": string(randBytes(20)),
 	})
 
-	addr, err := net.ResolveUDPAddr("udp4", to)
+	addr, err := net.ResolveUDPAddr("udp", to)
 	if err != nil {
 		return
 	}
diff --git a/torsniff.go b/torsniff.go
index 69c45b3..6100953 100644
--- a/torsniff.go
+++ b/torsniff.go
@@ -5,9 +5,11 @@ import (
 	"fmt"
 	"io/ioutil"
 	"log"
+	"net"
 	"os"
 	"path"
 	"path/filepath"
+	"strconv"
 	"strings"
 	"time"
 
@@ -143,7 +145,6 @@ func (t *torsniff) run() error {
 		}
 	}
 
-	return nil
 }
 
 func (t *torsniff) work(ac *announcement, tokens chan struct{}) {
@@ -258,7 +259,7 @@ func main() {
 		}
 
 		p := &torsniff{
-			laddr:      fmt.Sprintf("%s:%d", addr, port),
+			laddr:      net.JoinHostPort(addr, strconv.Itoa(int(port))),
 			timeout:    timeout,
 			maxFriends: friends,
 			maxPeers:   peers,
@@ -269,7 +270,7 @@ func main() {
 		return p.run()
 	}
 
-	root.Flags().StringVarP(&addr, "addr", "a", "0.0.0.0", "listen on given address")
+	root.Flags().StringVarP(&addr, "addr", "a", "", "listen on given address (default all, ipv4 and ipv6)")
 	root.Flags().Uint16VarP(&port, "port", "p", 6881, "listen on given port")
 	root.Flags().IntVarP(&friends, "friends", "f", 500, "max fiends to make with per second")
 	root.Flags().IntVarP(&peers, "peers", "e", 400, "max peers to connect to download torrents")
@@ -278,6 +279,6 @@ func main() {
 	root.Flags().BoolVarP(&verbose, "verbose", "v", true, "run in verbose mode")
 
 	if err := root.Execute(); err != nil {
-		fmt.Errorf("could not start: %s\n", err)
+		fmt.Println(fmt.Errorf("could not start: %s", err))
 	}
 }