diff --git a/combo/apps/lingo/models.py b/combo/apps/lingo/models.py
index 392fc7ec..857a662d 100644
--- a/combo/apps/lingo/models.py
+++ b/combo/apps/lingo/models.py
@@ -711,8 +711,8 @@ class RemoteItem(object):
     ):
         self.id = id
         self.regie = regie
-        self.creation_date = dateparse.parse_date(creation_date)
-        self.payment_limit_date = dateparse.parse_date(payment_limit_date)
+        self.creation_date = dateparse.parse_date(creation_date or '')
+        self.payment_limit_date = dateparse.parse_date(payment_limit_date or '')
         self.total_amount = Decimal(total_amount)
         self.amount = Decimal(amount)
         if amount_paid: