diff --git a/erpnext/accounts/deferred_revenue.py b/erpnext/accounts/deferred_revenue.py
index 5e5c6e5..2ff2644 100644
--- a/erpnext/accounts/deferred_revenue.py
+++ b/erpnext/accounts/deferred_revenue.py
@@ -157,6 +157,7 @@
 				"credit": base_amount,
 				"credit_in_account_currency": amount,
 				"cost_center": item.cost_center,
+				"voucher_detail_no": item.name,
 				'posting_date': booking_end_date,
 				'project': project
 			}, account_currency)