Index: invoice.py
===================================================================

--- ./modules/account_invoice/invoice.py
+++ ./modules/account_invoice/invoice.py
@@ -391,6 +391,8 @@
 
         if self.party:
             invoice_address = self.party.address_get(type='invoice')
+            if not invoice_address:
+                return res
             res['invoice_address'] = invoice_address.id
             res['invoice_address.rec_name'] = invoice_address.rec_name
         return res