diff --git a/kernel/treenode/blocktree.go b/kernel/treenode/blocktree.go
index 153429c35f8..82d1a169396 100644
--- a/kernel/treenode/blocktree.go
+++ b/kernel/treenode/blocktree.go
@@ -220,7 +220,7 @@ func GetBlockTreeRootByPath(boxID, path string) (ret *BlockTree) {
 func GetBlockTreeRootByHPath(boxID, hPath string) (ret *BlockTree) {
 	ret = &BlockTree{}
 	hPath = gulu.Str.RemoveInvisible(hPath)
-	sqlStmt := "SELECT * FROM blocktrees WHERE box_id = ? AND hpath = ?"
+	sqlStmt := "SELECT * FROM blocktrees WHERE box_id = ? AND hpath = ? AND type = 'd'"
 	err := db.QueryRow(sqlStmt, boxID, hPath).Scan(&ret.ID, &ret.RootID, &ret.ParentID, &ret.BoxID, &ret.Path, &ret.HPath, &ret.Updated, &ret.Type)
 	if nil != err {
 		ret = nil
@@ -235,7 +235,7 @@ func GetBlockTreeRootByHPath(boxID, hPath string) (ret *BlockTree) {
 
 func GetBlockTreeRootsByHPath(boxID, hPath string) (ret []*BlockTree) {
 	hPath = gulu.Str.RemoveInvisible(hPath)
-	sqlStmt := "SELECT * FROM blocktrees WHERE box_id = ? AND hpath = ?"
+	sqlStmt := "SELECT * FROM blocktrees WHERE box_id = ? AND hpath = ? AND type = 'd'"
 	rows, err := db.Query(sqlStmt, boxID, hPath)
 	if nil != err {
 		logging.LogErrorf("sql query [%s] failed: %s", sqlStmt, err)
@@ -256,7 +256,7 @@ func GetBlockTreeRootsByHPath(boxID, hPath string) (ret []*BlockTree) {
 func GetBlockTreeRootByHPathPreferredParentID(boxID, hPath, preferredParentID string) (ret *BlockTree) {
 	hPath = gulu.Str.RemoveInvisible(hPath)
 	var roots []*BlockTree
-	sqlStmt := "SELECT * FROM blocktrees WHERE box_id = ? AND hpath = ? AND parent_id = ?"
+	sqlStmt := "SELECT * FROM blocktrees WHERE box_id = ? AND hpath = ? AND parent_id = ? AND type = 'd'"
 	rows, err := db.Query(sqlStmt, boxID, hPath, preferredParentID)
 	if nil != err {
 		logging.LogErrorf("sql query [%s] failed: %s", sqlStmt, err)