diff --git a/erpnext/manufacturing/doctype/work_order/work_order.js b/erpnext/manufacturing/doctype/work_order/work_order.js
index 7b2f9a4..22d74e8 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.js
+++ b/erpnext/manufacturing/doctype/work_order/work_order.js
@@ -349,7 +349,8 @@
 	before_submit: function(frm) {
 		frm.toggle_reqd(["fg_warehouse", "wip_warehouse"], true);
 		frm.fields_dict.required_items.grid.toggle_reqd("source_warehouse", true);
-		frm.toggle_reqd("transfer_material_against", frm.doc.operations);
+		frm.toggle_reqd("transfer_material_against",
+			frm.doc.operations && frm.doc.operations.length > 0);
 		frm.fields_dict.operations.grid.toggle_reqd("workstation", frm.doc.operations);
 	},