diff --git a/dfssc/sign/create.go b/dfssc/sign/create.go
index 5a737924c2e0a48f93e67f7502b25aa8c601a0eb..52fa8599b2672f1819d564b3be8c55e81f427e4d 100644
--- a/dfssc/sign/create.go
+++ b/dfssc/sign/create.go
@@ -5,13 +5,11 @@ import (
 	"io/ioutil"
 	"path/filepath"
 
-	"github.com/spf13/viper"
-
 	"dfss/dfssc/common"
 	"dfss/dfssc/security"
 	"dfss/dfssp/api"
 	"dfss/net"
-
+	"github.com/spf13/viper"
 	"golang.org/x/net/context"
 )
 
diff --git a/dfssc/sign/fetch.go b/dfssc/sign/fetch.go
index c47e952a31b87d4b7f4d2b374a4028d7ff757948..9c83943ad11dc21a22d9406090c98b87c4ae456d 100644
--- a/dfssc/sign/fetch.go
+++ b/dfssc/sign/fetch.go
@@ -3,13 +3,11 @@ package sign
 import (
 	"io/ioutil"
 
-	"github.com/spf13/viper"
-
 	"dfss/dfssc/common"
 	"dfss/dfssc/security"
 	"dfss/dfssp/api"
 	"dfss/net"
-
+	"github.com/spf13/viper"
 	"golang.org/x/net/context"
 )
 
diff --git a/dfssc/sign/promises.go b/dfssc/sign/promises.go
index 03218870b1f7fa353efa7470a0b8095f344906f3..d085bc7b0ace246962e8bf0979bc224b7c7b0112 100644
--- a/dfssc/sign/promises.go
+++ b/dfssc/sign/promises.go
@@ -7,7 +7,6 @@ import (
 	cAPI "dfss/dfssc/api"
 	dAPI "dfss/dfssd/api"
 	pAPI "dfss/dfssp/api"
-
 	"golang.org/x/net/context"
 )
 
diff --git a/dfssc/sign/starter.go b/dfssc/sign/starter.go
index 0921b0ed03bcbe79aab00d682ea6bdb51f160498..d6cdf997ae69493d05e40672dc421d3d89bc3563 100644
--- a/dfssc/sign/starter.go
+++ b/dfssc/sign/starter.go
@@ -8,8 +8,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/spf13/viper"
-
 	"dfss"
 	cAPI "dfss/dfssc/api"
 	"dfss/dfssc/common"
@@ -18,7 +16,7 @@ import (
 	pAPI "dfss/dfssp/api"
 	"dfss/dfssp/contract"
 	"dfss/net"
-
+	"github.com/spf13/viper"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc"
 )
diff --git a/dfssc/sign/starter_test.go b/dfssc/sign/starter_test.go
index cb642b1a718c4c45bebbf608b39743fa0c2c4774..fa6d121cc03be189e7f8ae78183e2cba6305d9d4 100644
--- a/dfssc/sign/starter_test.go
+++ b/dfssc/sign/starter_test.go
@@ -4,7 +4,6 @@ import (
 	"testing"
 
 	"dfss/dfssp/contract"
-
 	"github.com/stretchr/testify/assert"
 )
 
diff --git a/gui/config/config.go b/gui/config/config.go
index 51da1fc68e2b6abbe7b39ca4c059752a8d16c5df..198e9d1b766d9f901a421d93e5115f1240dc6382 100644
--- a/gui/config/config.go
+++ b/gui/config/config.go
@@ -40,6 +40,7 @@ func Load() {
 	// Fill virtual-only fields
 	viper.Set("registered", isFileValid(viper.GetString("file_key")))
 	viper.Set("authenticated", isFileValid(viper.GetString("file_cert")))
+	viper.Set("local_port", 9005)
 
 	return
 }