diff --git a/modules/account_stock_anglo_saxon/invoice.py b/modules/account_stock_anglo_saxon/invoice.py
index d774321..01eb200 100755
--- a/modules/account_stock_anglo_saxon/invoice.py
+++ b/modules/account_stock_anglo_saxon/invoice.py
@@ -176,6 +176,7 @@ class InvoiceLine(metaclass=PoolMeta):
             if self.amount < 0 :
                 cost *= -1
         logger.info("GETMOVELINES_COST:%s",cost)
+        anglo_saxon_move_lines_ = []
         with Transaction().set_context(
                 company=self.invoice.company.id, date=accounting_date):
             anglo_saxon_move_lines = self._get_anglo_saxon_move_lines(