diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
index 3e12a43..7562418 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
@@ -28,7 +28,7 @@
 	}
 
 	onload() {
-		this._super();
+		super.onload();
 
 		if(!this.frm.doc.__islocal) {
 			// show credit_to in print format