diff --git a/tools/pd-backup/tests/backup_test.go b/tools/pd-backup/tests/backup_test.go
index 2a55a790849..05d2b7b92ed 100644
--- a/tools/pd-backup/tests/backup_test.go
+++ b/tools/pd-backup/tests/backup_test.go
@@ -37,6 +37,8 @@ func TestBackup(t *testing.T) {
 	err = cluster.RunInitialServers()
 	re.NoError(err)
 	re.NotEmpty(cluster.WaitLeader())
+	leaderServer := cluster.GetLeaderServer()
+	leaderServer.BootstrapCluster()
 	pdAddr := cluster.GetConfig().GetClientURL()
 	urls := strings.Split(pdAddr, ",")
 	defer cluster.Destroy()