diff --git a/cmd/server.go b/cmd/server.go
index 3758009f6..88f0e1782 100644
--- a/cmd/server.go
+++ b/cmd/server.go
@@ -37,6 +37,7 @@ var ServerCmd = &cobra.Command{
 the address is defined in config file`,
 	Run: func(cmd *cobra.Command, args []string) {
 		Init()
+		os.Stdout.Sync()
 		if conf.Conf.DelayedStart != 0 {
 			utils.Log.Infof("delayed start for %d seconds", conf.Conf.DelayedStart)
 			time.Sleep(time.Duration(conf.Conf.DelayedStart) * time.Second)
diff --git a/internal/bootstrap/data/user.go b/internal/bootstrap/data/user.go
index 00b899091..160d1ec46 100644
--- a/internal/bootstrap/data/user.go
+++ b/internal/bootstrap/data/user.go
@@ -42,6 +42,7 @@ func initUser() {
 				// DO NOT output the password to log file. Only output to console.
 				// utils.Log.Infof("Successfully created the admin user and the initial password is: %s", adminPassword)
 				fmt.Printf("Successfully created the admin user and the initial password is: %s\n", adminPassword)
+				os.Stdout.Sync()
 			}
 		} else {
 			utils.Log.Fatalf("[init user] Failed to get admin user: %v", err)