diff --git a/pkg/controller/controller_utils.go b/pkg/controller/controller_utils.go
index 3b28a28e5..7b4eafc54 100755
--- a/pkg/controller/controller_utils.go
+++ b/pkg/controller/controller_utils.go
@@ -21,7 +21,7 @@ package controller
 import (
 	"context"
 	"fmt"
-        "math/rand"
+    "math/rand"
 	"time"
 
 	"k8s.io/apimachinery/pkg/api/errors"
@@ -30,7 +30,7 @@ import (
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/tools/cache"
 	"tkestack.io/tke/pkg/util/log"
-        "k8s.io/apimachinery/pkg/version"
+    "k8s.io/apimachinery/pkg/version"
 
 	// register auth group api scheme for api server.
 	_ "tkestack.io/tke/api/platform/install"