diff --git a/kernel/api/block.go b/kernel/api/block.go
index 1ee9b5d40..e355c3b85 100644
--- a/kernel/api/block.go
+++ b/kernel/api/block.go
@@ -174,6 +174,11 @@ func checkBlockExist(c *gin.Context) {
 		ret.Data = id
 		return
 	}
+	if errors.Is(err, model.ErrIndexing) {
+		ret.Code = 3
+		ret.Data = id
+		return
+	}
 	ret.Data = nil != b
 }
 
@@ -377,6 +382,11 @@ func getBlockInfo(c *gin.Context) {
 		ret.Data = id
 		return
 	}
+	if errors.Is(err, model.ErrIndexing) {
+		ret.Code = 3
+		ret.Data = id
+		return
+	}
 	if nil == block {
 		ret.Code = -1
 		ret.Msg = fmt.Sprintf(model.Conf.Language(15), id)
@@ -403,6 +413,11 @@ func getBlockInfo(c *gin.Context) {
 		ret.Data = id
 		return
 	}
+	if errors.Is(err, model.ErrIndexing) {
+		ret.Code = 3
+		ret.Data = id
+		return
+	}
 	rootTitle := root.IAL["title"]
 	rootTitle = html.UnescapeString(rootTitle)
 	ret.Data = map[string]string{
diff --git a/kernel/model/block.go b/kernel/model/block.go
index c74528b38..774ea05cf 100644
--- a/kernel/model/block.go
+++ b/kernel/model/block.go
@@ -393,11 +393,10 @@ func getBlock(id string) (ret *Block, err error) {
 
 	tree, err := loadTreeByBlockID(id)
 	if nil != err {
-		waitForIndexing()
-		tree, err = loadTreeByBlockID(id)
-		if nil != err {
-			return
+		if indexing {
+			err = ErrIndexing
 		}
+		return
 	}
 
 	node := treenode.GetNodeInTree(tree, id)
diff --git a/kernel/model/tree.go b/kernel/model/tree.go
index e80c43316..18fbe81bc 100644
--- a/kernel/model/tree.go
+++ b/kernel/model/tree.go
@@ -138,9 +138,12 @@ func loadTree(localPath string, luteEngine *lute.Lute) (ret *parse.Tree, err err
 	return
 }
 
-var ErrBoxNotFound = errors.New("notebook not found")
-var ErrBlockNotFound = errors.New("block not found")
-var ErrTreeNotFound = errors.New("tree not found")
+var (
+	ErrBoxNotFound   = errors.New("notebook not found")
+	ErrBlockNotFound = errors.New("block not found")
+	ErrTreeNotFound  = errors.New("tree not found")
+	ErrIndexing      = errors.New("indexing")
+)
 
 func loadTreeByBlockID(id string) (ret *parse.Tree, err error) {
 	if "" == id {