diff --git a/frontend/src/views/dataset/add/AddExcel.vue b/frontend/src/views/dataset/add/AddExcel.vue
index 4ec282d36b..79133cbc06 100644
--- a/frontend/src/views/dataset/add/AddExcel.vue
+++ b/frontend/src/views/dataset/add/AddExcel.vue
@@ -165,7 +165,7 @@ export default {
     },
     tableId: {
       type: String,
-      default: null
+      default: ''
     },
     editType: {
       type: Number,