diff --git a/redis-bechmark-go.go b/redis-bechmark-go.go
index cb04bbc..f6d1a9a 100644
--- a/redis-bechmark-go.go
+++ b/redis-bechmark-go.go
@@ -173,6 +173,7 @@ func main() {
 	port := flag.Int("p", 12000, "Server port.")
 	rps := flag.Int64("rps", 0, "Max rps. If 0 no limit is applied and the DB is stressed up to maximum.")
 	rpsburst := flag.Int64("rps-burst", 0, "Max rps burst. If 0 the allowed burst will be the ammount of clients.")
+	username := flag.String("u", "", "Username for Redis Auth.")
 	password := flag.String("a", "", "Password for Redis Auth.")
 	jsonOutFile := flag.String("json-out-file", "", "Results file. If empty will not save.")
 	seed := flag.Int64("random-seed", 12345, "random seed to be used.")
@@ -264,6 +265,9 @@ func main() {
 	if *password != "" {
 		opts.AuthPass = *password
 	}
+	if *username != "" {
+		opts.AuthUser = *username
+	}
 	alwaysRESP2 := false
 	if *resp == "2" {
 		opts.Protocol = "2"
@@ -325,6 +329,7 @@ func main() {
 			}
 			clientOptions := rueidis.ClientOption{
 				InitAddress:         []string{connectionStr},
+				Username:            *username,
 				Password:            *password,
 				AlwaysPipelining:    false,
 				AlwaysRESP2:         alwaysRESP2,
diff --git a/redis-bechmark-go_test.go b/redis-bechmark-go_test.go
index 78d588a..a6a4c45 100644
--- a/redis-bechmark-go_test.go
+++ b/redis-bechmark-go_test.go
@@ -100,7 +100,9 @@ func TestGecko(t *testing.T) {
 		args               []string
 	}{
 		{"simple run", 0, 1, 100, []string{"-p", "6379", "-c", "10", "-n", "100", "HSET", "hash:1", "field", "value"}},
+		{"simple run username", 0, 1, 100, []string{"-p", "6379", "-u", "default", "-c", "10", "-n", "100", "HSET", "hash:1", "field", "value"}},
 		{"simple run rueidis", 0, 1, 100, []string{"-p", "6379", "-rueidis", "-c", "10", "-n", "100", "HSET", "hash:1", "field", "value"}},
+		{"simple run rueidis username", 0, 1, 100, []string{"-p", "6379", "-rueidis", "-u", "default", "-c", "10", "-n", "100", "HSET", "hash:1", "field", "value"}},
 		{"run with multi-exec rueidis", 0, 1, 100, []string{"-p", "6379", "-rueidis", "-multi", "-c", "10", "-n", "100", "-rps", "100", "HSET", "hash:1", "field", "value"}},
 		{"run with rps", 0, 1, 100, []string{"-p", "6379", "-c", "10", "-n", "100", "-rps", "100", "HSET", "hash:1", "field", "value"}},
 		{"run with rps rueidis", 0, 1, 100, []string{"-p", "6379", "-rueidis", "-c", "10", "-n", "100", "-rps", "100", "HSET", "hash:1", "field", "value"}},