diff --git a/kernel/model/repository.go b/kernel/model/repository.go
index e169976db..12a2a0287 100644
--- a/kernel/model/repository.go
+++ b/kernel/model/repository.go
@@ -49,6 +49,7 @@ import (
 	"github.com/siyuan-note/siyuan/kernel/cache"
 	"github.com/siyuan-note/siyuan/kernel/conf"
 	"github.com/siyuan-note/siyuan/kernel/filesys"
+	"github.com/siyuan-note/siyuan/kernel/sql"
 	"github.com/siyuan-note/siyuan/kernel/task"
 	"github.com/siyuan-note/siyuan/kernel/treenode"
 	"github.com/siyuan-note/siyuan/kernel/util"
@@ -1244,6 +1245,7 @@ func processSyncMergeResult(exit, byHand bool, start time.Time, mergeResult *dej
 	upsertRootIDs, removeRootIDs := incReindex(upserts, removes)
 	elapsed := time.Since(start)
 	go func() {
+		sql.WaitForWritingDatabase()
 		util.WaitForUILoaded()
 
 		if util.ContainerAndroid == util.Container || util.ContainerIOS == util.Container {
diff --git a/kernel/model/sync.go b/kernel/model/sync.go
index 3719c372a..58caa6fcc 100644
--- a/kernel/model/sync.go
+++ b/kernel/model/sync.go
@@ -261,6 +261,9 @@ func checkSync(boot, exit, byHand bool) bool {
 
 // incReindex 增量重建索引。
 func incReindex(upserts, removes []string) (upsertRootIDs, removeRootIDs []string) {
+	upsertRootIDs = []string{}
+	removeRootIDs = []string{}
+
 	util.IncBootProgress(3, "Sync reindexing...")
 	msg := fmt.Sprintf(Conf.Language(35))
 	util.PushStatusBar(msg)