diff --git a/routers/repo/modelarts.go b/routers/repo/modelarts.go
index 933571a0b..e2b75e704 100755
--- a/routers/repo/modelarts.go
+++ b/routers/repo/modelarts.go
@@ -279,7 +279,7 @@ func NotebookShow(ctx *context.Context) {
 		}
 	}
 
-	datasetDownloadLink := "-"
+	datasetDownloadLink := ""
 	if ctx.IsSigned {
 		if task.Uuid != "" && task.UserID == ctx.User.ID {
 			attachment, err := models.GetAttachmentByUUID(task.Uuid)