diff --git a/erpnext/hr/doctype/department/department.js b/erpnext/hr/doctype/department/department.js
index de93390..76bc932 100644
--- a/erpnext/hr/doctype/department/department.js
+++ b/erpnext/hr/doctype/department/department.js
@@ -5,8 +5,8 @@
 	refresh: function(frm) {
 		// read-only for root department
 		if(!frm.doc.parent_department) {
-			cur_frm.set_read_only();
-			cur_frm.set_intro(__("This is a root department and cannot be edited."));
+			frm.set_read_only();
+			frm.set_intro(__("This is a root department and cannot be edited."));
 		}
 	},
 	validate: function(frm) {