diff --git a/date_range/models/date_range.py b/date_range/models/date_range.py
index a7926e6..7f1fb94 100644
--- a/date_range/models/date_range.py
+++ b/date_range/models/date_range.py
@@ -19,11 +19,11 @@ class DateRange(models.Model):
     date_start = fields.Date(string='Start date', required=True)
     date_end = fields.Date(string='End date', required=True)
     type_id = fields.Many2one(
-        comodel_name='date.range.type', string='Type', select=1, required=True)
+        comodel_name='date.range.type', string='Type', index=1, required=True)
     type_name = fields.Char(
         string='Type', related='type_id.name', readonly=True, store=True)
     company_id = fields.Many2one(
-        comodel_name='res.company', string='Company', select=1,
+        comodel_name='res.company', string='Company', index=1,
         default=_default_company)
     active = fields.Boolean(
         help="The active field allows you to hide the date range without "
diff --git a/date_range/models/date_range_type.py b/date_range/models/date_range_type.py
index 119f1ff..bff6e4f 100644
--- a/date_range/models/date_range_type.py
+++ b/date_range/models/date_range_type.py
@@ -20,7 +20,7 @@ class DateRangeType(models.Model):
         help="The active field allows you to hide the date range without "
         "removing it.", default=True)
     company_id = fields.Many2one(
-        comodel_name='res.company', string='Company', select=1,
+        comodel_name='res.company', string='Company', index=1,
         default=_default_company)
 
     _sql_constraints = [