diff --git a/cluster/directory/static_directory.go b/cluster/directory/static_directory.go
index 55d2944c0c2686ec02fdfbe2d0d63abe20f9891d..381731aefd2ce6d98407003984d0464eebf0f1dc 100644
--- a/cluster/directory/static_directory.go
+++ b/cluster/directory/static_directory.go
@@ -20,6 +20,7 @@ package directory
 import (
 	"reflect"
 )
+
 import (
 	"github.com/apache/dubbo-go/common"
 	"github.com/apache/dubbo-go/common/constant"
diff --git a/cluster/router/router_factory_test.go b/cluster/router/router_factory_test.go
index 0589176601a938b0b3f1d279bf13b06c54b7949b..7b14e3d3d973d1924bec979de1d78b71361887d7 100644
--- a/cluster/router/router_factory_test.go
+++ b/cluster/router/router_factory_test.go
@@ -20,6 +20,7 @@ package router
 import (
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/config/condition_router_config_test.go b/config/condition_router_config_test.go
index b64b520f9ae0f5e4dc4280375cfd0916ab65fa62..ec1d7b5f47e766199305b3f9f8d789ba1ac77fb0 100644
--- a/config/condition_router_config_test.go
+++ b/config/condition_router_config_test.go
@@ -20,6 +20,7 @@ import (
 	"strings"
 	"testing"
 )
+
 import (
 	"github.com/stretchr/testify/assert"
 )
diff --git a/config/config_loader.go b/config/config_loader.go
index 4b15fc5a8697ec5a40ea85cdc343d237f557a89f..30e5c81f117ba3457992cce00711ed639985620c 100644
--- a/config/config_loader.go
+++ b/config/config_loader.go
@@ -41,7 +41,9 @@ var (
 // Namely: dubbo.consumer.xml & dubbo.provider.xml in java dubbo
 func init() {
 	var (
-		confConFile, confProFile, confRouterFile string
+		confConFile    string
+		confProFile    string
+		confRouterFile string
 	)
 
 	confConFile = os.Getenv(constant.CONF_CONSUMER_FILE_PATH)