diff --git a/main.go b/main.go
index e2ef186..9b577c2 100644
--- a/main.go
+++ b/main.go
@@ -45,7 +45,7 @@ func onPerhipheralDiscovered(p gatt.Peripheral, a *gatt.Advertisement, rssi int)
 	fmt.Println("NAME:", a.LocalName, "T:", time.Now(), "MAC:", p.ID(), "RSSI:", rssi, "LEN:", len(a.ManufacturerData))
 	db, err := sqlite.New()
 	if err != nil {
-		fmt.Println(err.Error())
+		log.Fatalln(err.Error())
 	}
 	if err := db.Save(&model.Rssi{
 		MAC:        p.ID(),
@@ -53,7 +53,7 @@ func onPerhipheralDiscovered(p gatt.Peripheral, a *gatt.Advertisement, rssi int)
 		Rssi:       int32(rssi),
 		PackageLen: len(a.ManufacturerData),
 	}).Error; err != nil {
-		fmt.Println(err.Error())
+		log.Fatalln(err.Error())
 	}
 	// for _, d := range a.ServiceData {
 	// 	fmt.Println("uuid:", d.UUID, " data:", d.Data)