diff --git a/erpnext/selling/sales_common.js b/erpnext/selling/sales_common.js
index 8bb05c6..66e935a 100644
--- a/erpnext/selling/sales_common.js
+++ b/erpnext/selling/sales_common.js
@@ -588,16 +588,13 @@
 
 frappe.ui.form.on(cur_frm.doctype,"project_name", function(frm) {
 	frappe.call({
-
 		method:'erpnext.projects.doctype.project.project.get_cost_center_name' ,
-		args: {
-			project_name: frm.doc.project_name
-		},
+		args: {	project_name: frm.doc.project_name	},
 		callback: function(r, rt) {
-			if(!r.exe) { 
-			   $.each(frm.doc[cur_frm.cscript.fname], function(i, row) {
+			if(!r.exc) { 
+				$.each(frm.doc[cur_frm.cscript.fname] || [], function(i, row) {
 					frappe.model.set_value(row.doctype, row.name, "cost_center", r.message);
-			        msgprint(__("Cost Center For Item with Item Code '"+row.item_name+"' has been Changed to "+ r.message));
+					msgprint(__("Cost Center For Item with Item Code '"+row.item_name+"' has been Changed to "+ r.message));
 				})
 			}
 		}