diff --git a/modules/account_invoice/invoice.py b/modules/account_invoice/invoice.py
index d20bd53949..3f6b8ed6bb 100644
--- a/modules/account_invoice/invoice.py
+++ b/modules/account_invoice/invoice.py
@@ -1537,6 +1537,7 @@ class Invoice(Workflow, ModelSQL, ModelView, TaxableMixin, InvoiceReportMixin):
         default.setdefault('tax_amount_cache', None)
         default.setdefault('validated_by')
         default.setdefault('posted_by')
+        default.setdefault('invoice_report_revisions', None)
         return super(Invoice, cls).copy(invoices, default=default)
 
     @classmethod