diff --git a/dhcp.go b/dhcp.go
index 890ba6b4..4d6d257a 100644
--- a/dhcp.go
+++ b/dhcp.go
@@ -2,8 +2,12 @@ package main
 
 import (
 	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"log"
 	"net"
 	"net/http"
+	"strings"
 	"time"
 
 	"github.com/AdguardTeam/AdGuardHome/dhcpd"