diff --git a/kernel/model/graph.go b/kernel/model/graph.go
index 86283185e..fc13b0816 100644
--- a/kernel/model/graph.go
+++ b/kernel/model/graph.go
@@ -18,7 +18,6 @@ package model
 
 import (
 	"bytes"
-	"github.com/siyuan-note/siyuan/kernel/util"
 	"math"
 	"strings"
 	"unicode/utf8"
@@ -30,6 +29,7 @@ import (
 	"github.com/siyuan-note/logging"
 	"github.com/siyuan-note/siyuan/kernel/sql"
 	"github.com/siyuan-note/siyuan/kernel/treenode"
+	"github.com/siyuan-note/siyuan/kernel/util"
 )
 
 type GraphNode struct {