diff --git a/weed/filer/abstract_sql/abstract_sql_store_kv.go b/weed/filer/abstract_sql/abstract_sql_store_kv.go
index ace7c4e08..b5a662c6b 100644
--- a/weed/filer/abstract_sql/abstract_sql_store_kv.go
+++ b/weed/filer/abstract_sql/abstract_sql_store_kv.go
@@ -4,10 +4,11 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"strings"
+
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/util"
-	"strings"
 )
 
 func (store *AbstractSqlStore) KvPut(ctx context.Context, key []byte, value []byte) (err error) {