diff --git a/addons/account/wizard/account_pay_invoice.py b/addons/account/wizard/account_pay_invoice.py
index 109d9f12e61..93716dc65bf 100644
--- a/addons/account/wizard/account_pay_invoice.py
+++ b/addons/account/wizard/account_pay_invoice.py
@@ -161,6 +161,7 @@ class account_invoice_pay(osv.osv_memory):
             writeoff_account_id = context['write_off']['writeoff_acc_id']
             writeoff_journal_id = context['write_off']['writeoff_journal_id']
             comment = context['write_off']['comment']
+            context['analytic_id'] = context['write_off']['analytic_id']
 
         amount = data['amount']