diff --git a/tools/benchmark/cmd/root.go b/tools/benchmark/cmd/root.go
index 0b2fc725c..5a188f197 100644
--- a/tools/benchmark/cmd/root.go
+++ b/tools/benchmark/cmd/root.go
@@ -33,7 +33,7 @@ etcd client libray.
 }
 
 var (
-	endpoints    string
+	endpoints    []string
 	totalConns   uint
 	totalClients uint
 
@@ -48,7 +48,7 @@ var (
 )
 
 func init() {
-	RootCmd.PersistentFlags().StringVar(&endpoints, "endpoint", "127.0.0.1:2378", "comma-separated gRPC endpoints")
+	RootCmd.PersistentFlags().StringSliceVar(&endpoints, "endpoints", []string{"127.0.0.1:2378"}, "gRPC endpoints")
 	RootCmd.PersistentFlags().UintVar(&totalConns, "conns", 1, "Total number of gRPC connections")
 	RootCmd.PersistentFlags().UintVar(&totalClients, "clients", 1, "Total number of gRPC clients")
 
diff --git a/tools/benchmark/cmd/util.go b/tools/benchmark/cmd/util.go
index b22270fe9..f76ec4331 100644
--- a/tools/benchmark/cmd/util.go
+++ b/tools/benchmark/cmd/util.go
@@ -18,7 +18,6 @@ import (
 	"crypto/rand"
 	"fmt"
 	"os"
-	"strings"
 
 	"github.com/coreos/etcd/clientv3"
 )
@@ -30,8 +29,7 @@ var (
 )
 
 func mustCreateConn() *clientv3.Client {
-	eps := strings.Split(endpoints, ",")
-	endpoint := eps[dialTotal%len(eps)]
+	endpoint := endpoints[dialTotal%len(endpoints)]
 	dialTotal++
 	cfgtls := &tls
 	if cfgtls.Empty() {