diff --git a/erpnext/manufacturing/doctype/job_card/job_card.js b/erpnext/manufacturing/doctype/job_card/job_card.js
index 4cc60a3b4a6..ad514efa55f 100644
--- a/erpnext/manufacturing/doctype/job_card/job_card.js
+++ b/erpnext/manufacturing/doctype/job_card/job_card.js
@@ -37,7 +37,7 @@ frappe.ui.form.on("Job Card", {
 		frappe.flags.resume_job = 0;
 		let has_items = frm.doc.items && frm.doc.items.length;
 
-		if (!frm.is_new() && frm.doc.__onload.work_order_closed) {
+		if (!frm.is_new() && frm.doc.__onload?.work_order_closed) {
 			frm.disable_save();
 			return;
 		}