diff --git a/conf/wide.go b/conf/wide.go
index 37204c4..19d8620 100644
--- a/conf/wide.go
+++ b/conf/wide.go
@@ -18,7 +18,6 @@ package conf
 import (
 	"encoding/json"
 	"io/ioutil"
-	"net"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -267,7 +266,7 @@ func Save() bool {
 }
 
 // Load loads the configurations from wide.json.
-func Load(confPath, confIP, confPort, confServer, confChannel string, confDocker bool) {
+func Load(confPath, confIP, confPort, confServer, confChannel string) {
 	bytes, _ := ioutil.ReadFile(confPath)
 
 	err := json.Unmarshal(bytes, &Wide)
@@ -331,23 +330,6 @@ func Load(confPath, confIP, confPort, confServer, confChannel string, confDocker
 		Wide.SessionChannel = confChannel
 	}
 
-	// Docker
-	if confDocker {
-		h, err := net.LookupHost("wide")
-		if nil != err {
-			glog.Error(err)
-
-			os.Exit(-1)
-		}
-
-		// XXX: secure protocol wss enchance
-		channel := "ws://" + h[0] + ":" + Wide.Port
-		Wide.EditorChannel = channel
-		Wide.OutputChannel = channel
-		Wide.ShellChannel = channel
-		Wide.SessionChannel = channel
-	}
-
 	Wide.Server = strings.Replace(Wide.Server, "{Port}", Wide.Port, 1)
 	Wide.StaticServer = strings.Replace(Wide.StaticServer, "{Port}", Wide.Port, 1)
 	Wide.EditorChannel = strings.Replace(Wide.EditorChannel, "{Port}", Wide.Port, 1)
diff --git a/main.go b/main.go
index d476685..4861c69 100644
--- a/main.go
+++ b/main.go
@@ -45,7 +45,6 @@ func init() {
 	confPort := flag.String("port", "", "port to visit")
 	confServer := flag.String("server", "", "this will overwrite Wide.Server if specified")
 	confChannel := flag.String("channel", "", "this will overwrite Wide.XXXChannel if specified")
-	confDocker := flag.Bool("docker", false, "whether run in a docker container")
 
 	flag.Set("logtostderr", "true")
 	flag.Set("v", "3")
@@ -55,7 +54,7 @@ func init() {
 
 	event.Load()
 
-	conf.Load(*confPath, *confIP, *confPort, *confServer, *confChannel, *confDocker)
+	conf.Load(*confPath, *confIP, *confPort, *confServer, *confChannel)
 
 	conf.FixedTimeCheckEnv()
 	conf.FixedTimeSave()