diff --git a/br/pkg/streamhelper/basic_lib_for_test.go b/br/pkg/streamhelper/basic_lib_for_test.go
index 22fa031854fbe..84ebe51ee1f8c 100644
--- a/br/pkg/streamhelper/basic_lib_for_test.go
+++ b/br/pkg/streamhelper/basic_lib_for_test.go
@@ -671,7 +671,7 @@ func newTestEnv(c *fakeCluster, t *testing.T) *testEnv {
 		Name: "whole",
 		Info: &backup.StreamBackupTaskInfo{
 			Name:    "whole",
-			StartTs: 5,
+			StartTs: 1,
 		},
 		Ranges: rngs,
 	}