diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
index d7d211cdd9cb389d857046bd83ae296435b02aa2..64431639809157dc3b308245fa1425c5b450652d 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
@@ -114,7 +114,11 @@ erpnext.accounts.PurchaseInvoice = class PurchaseInvoice extends erpnext.buying.
 
 		if (!doc.is_return && doc.docstatus == 1) {
 			if (doc.outstanding_amount >= 0 || Math.abs(flt(doc.outstanding_amount)) < flt(doc.grand_total)) {
-				this.frm.add_custom_button(__("Return / Debit Note"), this.make_debit_note, __("Create"));
+				this.frm.add_custom_button(
+					__("Return / Debit Note"),
+					this.make_debit_note.bind(this),
+					__("Create")
+				);
 			}
 		}