diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.js b/erpnext/accounts/doctype/sales_invoice/sales_invoice.js
index 39dfd8d76d5..af6a52a6429 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.js
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.js
@@ -469,7 +469,7 @@ erpnext.accounts.SalesInvoiceController = class SalesInvoiceController extends e
 				let row = frappe.get_doc(d.doctype, d.name)
 				set_timesheet_detail_rate(row.doctype, row.name, me.frm.doc.currency, row.timesheet_detail)
 			});
-			frm.trigger("calculate_timesheet_totals");
+			this.frm.trigger("calculate_timesheet_totals");
 		}
 	}
 };