diff --git a/models/account_invoice.py b/models/account_invoice.py
index 7f133fe0f2d1c08ab5f4d3709e58c9ea4d4ac593..542b83b94130b7d3453405f2259374758d22c96f 100755
--- a/models/account_invoice.py
+++ b/models/account_invoice.py
@@ -9,7 +9,7 @@ class AccountInvoice(models.Model):
 
     @api.model
     def _default_arescop_group_id(self):
-        if self.env.user.company_id == self.env.ref('cgscop_account_arescop.company_arescop'):
+        if self.env.user.company_id == self.env.ref('cgscop_account_arescop.company_arescop', False):
             return self.env.user.arescop_group_id.id
 
     arescop_group_id = fields.Many2one(
diff --git a/models/product.py b/models/product.py
index 127c625bd4f5d75146206881171caf1f5cd48d89..1e46d601112f2bb8ae21bd86fde76ee66ab2200f 100755
--- a/models/product.py
+++ b/models/product.py
@@ -9,7 +9,7 @@ class Product(models.Model):
 
     @api.model
     def _default_arescop_group_id(self):
-        if self.env.user.company_id == self.env.ref('cgscop_account_arescop.company_arescop'):
+        if self.env.user.company_id == self.env.ref('cgscop_account_arescop.company_arescop', False):
             return self.env.user.arescop_group_id.id
 
     arescop_group_id = fields.Many2one(