diff --git a/emissions/models.py b/emissions/models.py index 8dade8c5e6c9d38660b2adc85656cf0af79fea22..cf4f5c492ed0155cf16dd2beb566e19a3cafe488 100644 --- a/emissions/models.py +++ b/emissions/models.py @@ -195,7 +195,7 @@ class Emission(models.Model): possible_dates = [] for schedule in schedules: possible_dates.append((schedule.get_next_planned_date(since), schedule)) - possible_dates.sort() + possible_dates.sort(key=lambda x: x[0]) return possible_dates[0] def get_next_planned_date(self, since=None):