diff --git a/erpnext/selling/sales_common.js b/erpnext/selling/sales_common.js
index f1df3a11de48..e3de49c57d81 100644
--- a/erpnext/selling/sales_common.js
+++ b/erpnext/selling/sales_common.js
@@ -299,7 +299,8 @@ erpnext.selling.SellingController = class SellingController extends erpnext.Tran
 	}
 
 	batch_no(doc, cdt, cdn) {
-		var me = this;
+		super.batch_no(doc, cdt, cdn);
+
 		var item = frappe.get_doc(cdt, cdn);
 
 		if (item.serial_no) {
@@ -378,10 +379,6 @@ erpnext.selling.SellingController = class SellingController extends erpnext.Tran
 			}
 	}
 
-	batch_no(doc, cdt, cdn) {
-		super.batch_no(doc, cdt, cdn);
-	}
-
 	qty(doc, cdt, cdn) {
 		super.qty(doc, cdt, cdn);