diff --git a/src/i18n/zh/purchaseOrder.json b/src/i18n/zh/purchaseOrder.json
index a034c24..01f99ef 100644
--- a/src/i18n/zh/purchaseOrder.json
+++ b/src/i18n/zh/purchaseOrder.json
@@ -26,6 +26,7 @@
     "General": "一般",
     "Bind Storage": "綁定倉位",
     "Po No.": "採購訂單編號",
+    "PO No.": "採購訂單編號",
     "itemNo": "項目編號",
     "itemName": "項目名稱",
     "Item Detail": "項目詳情",