diff --git a/kernel/sql/asset.go b/kernel/sql/asset.go
index 3fb9c43e1..332dfd850 100644
--- a/kernel/sql/asset.go
+++ b/kernel/sql/asset.go
@@ -62,7 +62,7 @@ func docTagSpans(n *ast.Node) (ret []*Span) {
 	return
 }
 
-func docTitleImgAsset(root *ast.Node) *Asset {
+func docTitleImgAsset(root *ast.Node, boxLocalPath, docDirLocalPath string) *Asset {
 	if p := treenode.GetDocTitleImgPath(root); "" != p {
 		if !util.IsAssetLinkDest([]byte(p)) {
 			return nil
@@ -70,18 +70,21 @@ func docTitleImgAsset(root *ast.Node) *Asset {
 
 		var hash string
 		var err error
-		absPath := filepath.Join(util.DataDir, p)
-		if hash, err = util.GetEtag(absPath); nil != err {
-			logging.LogErrorf("read asset [%s] data failed: %s", absPath, err)
-			return nil
+		if lp := assetLocalPath(p, boxLocalPath, docDirLocalPath); "" != lp {
+			hash, err = util.GetEtag(lp)
+			if nil != err {
+				logging.LogErrorf("calc asset [%s] hash failed: %s", lp, err)
+				return nil
+			}
 		}
+
 		name, _ := util.LastID(p)
 		asset := &Asset{
 			ID:      ast.NewNodeID(),
 			BlockID: root.ID,
 			RootID:  root.ID,
 			Box:     root.Box,
-			DocPath: p,
+			DocPath: root.Path,
 			Path:    p,
 			Name:    name,
 			Title:   "title-img",
diff --git a/kernel/sql/database.go b/kernel/sql/database.go
index 8b13e3c44..0880506e0 100644
--- a/kernel/sql/database.go
+++ b/kernel/sql/database.go
@@ -683,7 +683,7 @@ func buildSpanFromNode(n *ast.Node, tree *parse.Tree, rootID, boxID, p string) (
 		walkStatus = ast.WalkSkipChildren
 		return
 	case ast.NodeDocument:
-		if asset := docTitleImgAsset(n); nil != asset {
+		if asset := docTitleImgAsset(n, boxLocalPath, docDirLocalPath); nil != asset {
 			assets = append(assets, asset)
 		}
 		if tags := docTagSpans(n); 0 < len(tags) {
diff --git a/kernel/util/etag.go b/kernel/util/etag.go
index 3c8e9ec0c..2152966f9 100644
--- a/kernel/util/etag.go
+++ b/kernel/util/etag.go
@@ -22,6 +22,8 @@ import (
 	"encoding/base64"
 	"io"
 	"os"
+
+	"github.com/siyuan-note/filelock"
 )
 
 // 以下是七牛云 Hash 算法实现 https://github.com/qiniu/qetag/blob/master/qetag.go
@@ -53,11 +55,11 @@ func GetEtagByHandle(f io.Reader, size int64) (etag string, err error) {
 }
 
 func GetEtag(filename string) (etag string, err error) {
-	f, err := os.Open(filename)
+	f, err := filelock.OpenFile(filename, os.O_RDONLY, 0644)
 	if err != nil {
 		return
 	}
-	defer f.Close()
+	defer filelock.CloseFile(f)
 
 	fi, err := f.Stat()
 	if err != nil {