minor fix in report
diff --git a/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.py b/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.py
index 16dd847..f54b860 100644
--- a/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.py
+++ b/erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.py
@@ -69,7 +69,7 @@
 
 	return frappe.db.sql("""select pi_item.parent, pi.posting_date, pi.credit_to, pi.company,
 		pi.supplier, pi.remarks, pi.base_net_total, pi_item.item_code, pi_item.item_name, pi_item.item_group,
-		pi_item.project_name, pi_item.purchase_order, pi_item.purchase_receipt, pi_item.po_detail
+		pi_item.project_name, pi_item.purchase_order, pi_item.purchase_receipt, pi_item.po_detail,
 		pi_item.expense_account, pi_item.qty, pi_item.base_net_rate, pi_item.base_net_amount, pi.supplier_name
 		from `tabPurchase Invoice` pi, `tabPurchase Invoice Item` pi_item
 		where pi.name = pi_item.parent and pi.docstatus = 1 %s %s