diff --git a/cmd/wireproxy/main.go b/cmd/wireproxy/main.go
index 713943a2..1a383a72 100644
--- a/cmd/wireproxy/main.go
+++ b/cmd/wireproxy/main.go
@@ -3,7 +3,6 @@ package main
 import (
 	"context"
 	"fmt"
-	"github.com/landlock-lsm/go-landlock/landlock"
 	"log"
 	"net"
 	"net/http"
@@ -13,6 +12,8 @@ import (
 	"strconv"
 	"syscall"
 
+	"github.com/landlock-lsm/go-landlock/landlock"
+
 	"github.com/akamensky/argparse"
 	"github.com/pufferffish/wireproxy"
 	"golang.zx2c4.com/wireguard/device"
@@ -23,9 +24,9 @@ import (
 const daemonProcess = "daemon-process"
 
 // default paths for wireproxy config file
-var default_config_paths = []string {
-    "/etc/wireproxy/wireproxy.conf",
-    os.Getenv("HOME")+"/.config/wireproxy.conf",
+var default_config_paths = []string{
+	"/etc/wireproxy/wireproxy.conf",
+	os.Getenv("HOME") + "/.config/wireproxy.conf",
 }
 
 var version = "1.0.8-dev"
@@ -59,12 +60,12 @@ func executablePath() string {
 
 // check if default config file paths exist
 func configFilePath() (string, bool) {
-    for _, path := range default_config_paths {
-        if _, err := os.Stat(path); err == nil {
-            return path, true
-        }
-    }
-    return "", false
+	for _, path := range default_config_paths {
+		if _, err := os.Stat(path); err == nil {
+			return path, true
+		}
+	}
+	return "", false
 }
 
 func lock(stage string) {
@@ -193,12 +194,12 @@ func main() {
 	}
 
 	if *config == "" {
-        if path, config_exist := configFilePath(); config_exist {
-            *config = path
-        } else {
-            fmt.Println("configuration path is required")
-            return
-        }
+		if path, config_exist := configFilePath(); config_exist {
+			*config = path
+		} else {
+			fmt.Println("configuration path is required")
+			return
+		}
 	}
 
 	if !*daemon {
diff --git a/config.go b/config.go
index 1f6e4e4a..6322793a 100644
--- a/config.go
+++ b/config.go
@@ -175,7 +175,7 @@ func parseCIDRNetIP(section *ini.Section, keyName string) ([]netip.Addr, error)
 		if len(str) == 0 {
 			continue
 		}
-    
+
 		if addr, err := netip.ParseAddr(str); err == nil {
 			ips = append(ips, addr)
 		} else {
@@ -183,7 +183,7 @@ func parseCIDRNetIP(section *ini.Section, keyName string) ([]netip.Addr, error)
 			if err != nil {
 				return nil, err
 			}
-      
+
 			addr := prefix.Addr()
 			ips = append(ips, addr)
 		}
diff --git a/config_test.go b/config_test.go
index 948fbf83..0e0cdc82 100644
--- a/config_test.go
+++ b/config_test.go
@@ -1,8 +1,9 @@
 package wireproxy
 
 import (
-	"github.com/go-ini/ini"
 	"testing"
+
+	"github.com/go-ini/ini"
 )
 
 func loadIniConfig(config string) (*ini.File, error) {
diff --git a/routine.go b/routine.go
index edfc793b..855758a6 100644
--- a/routine.go
+++ b/routine.go
@@ -8,10 +8,6 @@ import (
 	"encoding/binary"
 	"encoding/json"
 	"errors"
-	"golang.org/x/net/icmp"
-	"golang.org/x/net/ipv4"
-	"golang.org/x/net/ipv6"
-	"golang.zx2c4.com/wireguard/device"
 	"io"
 	"log"
 	"math/rand"
@@ -24,6 +20,11 @@ import (
 	"sync"
 	"time"
 
+	"golang.org/x/net/icmp"
+	"golang.org/x/net/ipv4"
+	"golang.org/x/net/ipv6"
+	"golang.zx2c4.com/wireguard/device"
+
 	"github.com/things-go/go-socks5"
 	"github.com/things-go/go-socks5/bufferpool"