diff --git a/services/wol/wol.go b/services/wol/wol.go
index 88c963d..35b068d 100644
--- a/services/wol/wol.go
+++ b/services/wol/wol.go
@@ -9,6 +9,6 @@ func InitService() {
 	Services = &Service{}
 }
 
-func WakeUp(mac string) {
+func WakeUp(mac string, port int) {
 
 }
diff --git a/services/wol/wol_test.go b/services/wol/wol_test.go
index c508933..9c19551 100644
--- a/services/wol/wol_test.go
+++ b/services/wol/wol_test.go
@@ -4,10 +4,27 @@ import (
 	"bytes"
 	"encoding/hex"
 	"net"
+	"regexp"
 	"strings"
 	"testing"
 )
 
+func TestRegExp(t *testing.T) {
+	validateMac := func() func(mac string) bool {
+		exp, _ := regexp.Compile("([0-9a-fA-F]{2}(-|:)?){5}([a-fA-F0-9]{2})")
+		return func(mac string) bool {
+			macLen := len(mac)
+			return exp.MatchString(mac) && (macLen == 12 || macLen == 17)
+		}
+	}()
+
+	t.Logf("255.255.255.255 %t", validateMac("255.255.255.255"))
+	t.Logf("FF:FF:FF:FF:FF:FF %t", validateMac("FF:FF:FF:FF:FF:FF"))
+	t.Logf("00-E0-4C-84-50-EB %t", validateMac("00-E0-4C-84-50-EB"))
+	t.Logf("00E04C8450EB %t", validateMac("00E04C8450EB"))
+	t.Logf("00E04C8450EBA %t", validateMac("00E04C8450EBA"))
+}
+
 func TestWol(t *testing.T) {
 	udpAddr, err := net.ResolveUDPAddr("udp", "255.255.255.255:9")
 	if err != nil {