diff --git a/erpnext/stock/doctype/item/item.js b/erpnext/stock/doctype/item/item.js
index 253390a..dd3248b 100644
--- a/erpnext/stock/doctype/item/item.js
+++ b/erpnext/stock/doctype/item/item.js
@@ -137,7 +137,7 @@
 	},
 
 	gst_hsn_code: function(frm) {
-		if(!frm.doc.taxes.length) {
+		if(!frm.doc.taxes || !frm.doc.taxes.length) {
 			frappe.db.get_doc("GST HSN Code", frm.doc.gst_hsn_code).then(hsn_doc => {
 				$.each(hsn_doc.taxes || [], function(i, tax) {
 					let a = frappe.model.add_child(cur_frm.doc, 'Item Tax', 'taxes');