diff --git a/src/pages/05_quotation/QuotationForm.vue b/src/pages/05_quotation/QuotationForm.vue
index a35ebafc..05776738 100644
--- a/src/pages/05_quotation/QuotationForm.vue
+++ b/src/pages/05_quotation/QuotationForm.vue
@@ -441,6 +441,7 @@ function convertToTable(nodes: Node[]) {
 
   list.forEach((v) => {
     v.amount = Math.max(selectedWorker.value.length, 1);
+    if (!v.workerIndex) v.workerIndex = [];
     for (let i = 0; i < selectedWorker.value.length; i++) {
       v.workerIndex.push(i);
     }