diff --git a/erpnext/buying/doctype/supplier/supplier.js b/erpnext/buying/doctype/supplier/supplier.js
index af6401b3fe6..1766c2c80cc 100644
--- a/erpnext/buying/doctype/supplier/supplier.js
+++ b/erpnext/buying/doctype/supplier/supplier.js
@@ -72,8 +72,8 @@ frappe.ui.form.on("Supplier", {
 		frappe.call({
 			method: "get_supplier_group_details",
 			doc: frm.doc,
-			callback: function(r){
-				frm.refresh()
+			callback: function() {
+				frm.refresh();
 			}
 		});
 	},
diff --git a/erpnext/selling/doctype/customer/customer.js b/erpnext/selling/doctype/customer/customer.js
index 91944adef3b..28494662673 100644
--- a/erpnext/selling/doctype/customer/customer.js
+++ b/erpnext/selling/doctype/customer/customer.js
@@ -153,8 +153,8 @@ frappe.ui.form.on("Customer", {
 		frappe.call({
 			method: "get_customer_group_details",
 			doc: frm.doc,
-			callback: function(r){
-				frm.refresh()
+			callback: function() {
+				frm.refresh();
 			}
 		});