diff --git a/main/commands/all/api/balancer_info.go b/main/commands/all/api/balancer_info.go
index 927ea7661..9b4d08fd5 100644
--- a/main/commands/all/api/balancer_info.go
+++ b/main/commands/all/api/balancer_info.go
@@ -48,7 +48,7 @@ func executeBalancerInfo(cmd *base.Command, args []string) {
 	defer close()
 
 	client := routerService.NewRoutingServiceClient(conn)
-	r := &routerService.GetBalancerInfoRequest{Tag: args[0]}
+	r := &routerService.GetBalancerInfoRequest{Tag: cmd.Flag.Arg(0)}
 	resp, err := client.GetBalancerInfo(ctx, r)
 	if err != nil {
 		base.Fatalf("failed to get health information: %s", err)