1 files changed, 1 insertions, 1 deletions
diff --git a/budget/models.py b/budget/models.py
index 852b3e1..88d44ae 100644
--- a/budget/models.py
+++ b/budget/models.py
@@ -37,7 +37,7 @@ class Project(db.Model):
         # for each person
         for person in self.members:
             # get the list of bills he has to pay
-            bills = Bill.query.filter(Bill.owers.contains(person))
+            bills = Bill.query.options(orm.subqueryload(Bill.owers)).filter(Bill.owers.contains(person))
             for bill in bills.all():
                 if person != bill.payer:
                     share = bill.pay_each() * person.weight