diff --git a/tests/realtikvtest/addindextest/main_test.go b/tests/realtikvtest/addindextest/main_test.go
index 5171b56a48d1a..5b8cab5d2b134 100644
--- a/tests/realtikvtest/addindextest/main_test.go
+++ b/tests/realtikvtest/addindextest/main_test.go
@@ -18,6 +18,7 @@ import (
 	"flag"
 	"testing"
 
+	"github.com/pingcap/tidb/config"
 	"github.com/pingcap/tidb/tests/realtikvtest"
 )
 
@@ -27,4 +28,7 @@ var FullMode = flag.Bool("full-mode", false, "whether tests run in full mode")
 
 func TestMain(m *testing.M) {
 	realtikvtest.RunTestMain(m)
+	config.UpdateGlobal(func(conf *config.Config) {
+		conf.Store = "tikv"
+	})
 }
diff --git a/tests/realtikvtest/testkit.go b/tests/realtikvtest/testkit.go
index 8193ae53c19ec..b3ae5f3c6a2ac 100644
--- a/tests/realtikvtest/testkit.go
+++ b/tests/realtikvtest/testkit.go
@@ -51,7 +51,6 @@ func RunTestMain(m *testing.M) {
 	config.UpdateGlobal(func(conf *config.Config) {
 		conf.TiKVClient.AsyncCommit.SafeWindow = 0
 		conf.TiKVClient.AsyncCommit.AllowedClockDrift = 0
-		conf.Store = "tikv"
 	})
 	tikv.EnableFailpoints()
 	opts := []goleak.Option{