diff --git a/speedtest.go b/speedtest.go
index 047a358..d6c8d5b 100644
--- a/speedtest.go
+++ b/speedtest.go
@@ -47,20 +47,20 @@ func main() {
 	// 0. speed test setting
 	var speedtestClient = speedtest.New(speedtest.WithUserConfig(
 		&speedtest.UserConfig{
-			UserAgent:     *userAgent,
-			Proxy:         *proxy,
-			Source:        *source,
-			DnsBindSource: *dnsBindSource,
-			Debug:         *debug,
-			PingMode:      parseProto(*pingMode), // TCP as default
-			SavingMode:    *savingMode,
-			CityFlag:      *city,
-			LocationFlag:  *location,
-			Keyword:       *search,
-			NoDownload:    *noDownload,
-			NoUpload:      *noUpload,
+			UserAgent:      *userAgent,
+			Proxy:          *proxy,
+			Source:         *source,
+			DnsBindSource:  *dnsBindSource,
+			Debug:          *debug,
+			PingMode:       parseProto(*pingMode), // TCP as default
+			SavingMode:     *savingMode,
+			MaxConnections: *thread,
+			CityFlag:       *city,
+			LocationFlag:   *location,
+			Keyword:        *search,
+			NoDownload:     *noDownload,
+			NoUpload:       *noUpload,
 		}))
-	speedtestClient.SetNThread(*thread)
 
 	if *showCityList {
 		speedtest.PrintCityList()
diff --git a/speedtest/speedtest.go b/speedtest/speedtest.go
index 371c9eb..3ba393d 100644
--- a/speedtest/speedtest.go
+++ b/speedtest/speedtest.go
@@ -46,7 +46,8 @@ type UserConfig struct {
 	Debug         bool
 	PingMode      Proto
 
-	SavingMode bool
+	SavingMode     bool
+	MaxConnections int
 
 	CityFlag     string
 	LocationFlag string
@@ -72,8 +73,9 @@ func (s *Speedtest) NewUserConfig(uc *UserConfig) {
 	}
 
 	if uc.SavingMode {
-		s.SetNThread(1) // Set the number of concurrent connections to 1
+		uc.MaxConnections = 1 // Set the number of concurrent connections to 1
 	}
+	s.SetNThread(uc.MaxConnections)
 
 	if len(uc.CityFlag) > 0 {
 		var err error