diff --git a/configuration_helper/models/config.py b/configuration_helper/models/config.py
index 32668005c..10433a949 100644
--- a/configuration_helper/models/config.py
+++ b/configuration_helper/models/config.py
@@ -4,6 +4,7 @@
 import re
 
 from odoo import api, fields, models
+from inspect import getmembers
 
 
 class AbstractConfigSettings(models.AbstractModel):
@@ -11,10 +12,6 @@ class AbstractConfigSettings(models.AbstractModel):
     _description = 'Abstract configuration settings'
     # prefix field name to differentiate fields in company with those in config
     _prefix = 'setting_'
-    # this is the class name to import in your module
-    # (it should be ResCompany or res_company, depends of your code)
-    _companyObject = None
-    _setup_extra_done = False
 
     company_id = fields.Many2one(
         'res.company',
@@ -32,22 +29,20 @@ class AbstractConfigSettings(models.AbstractModel):
     def _setup_base(self):
         cls = type(self)
         super(AbstractConfigSettings, self)._setup_base()
-        if not cls._companyObject:
-            return
-        if cls._setup_extra_done:
-            return
-        for field_key in cls._companyObject.__dict__.keys():
-            field = cls._companyObject.__dict__[field_key]
-            if isinstance(field, fields.Field):
-                # allows to exclude some field
-                if self._filter_field(field_key):
-                    # fields.agrs contains fields attributes
-                    kwargs = field.args.copy()
-                    kwargs['related'] = 'company_id.' + field_key
-                    field_key = re.sub('^' + self._prefix, '', field_key)
-                    self._add_field(field_key, field.new(**kwargs))
+
+        comp_fields = filter(
+            lambda f: (f[0].startswith(self._prefix) and
+                       self._filter_field(f[0])),
+            getmembers(type(self.env['res.company']),
+                       fields.Field.__instancecheck__)
+        )
+
+        for field_key, field in comp_fields:
+            kwargs = field.args.copy()
+            kwargs['related'] = 'company_id.' + field_key
+            field_key = re.sub('^' + self._prefix, '', field_key)
+            self._add_field(field_key, field.new(**kwargs))
         cls._proper_fields = set(cls._fields)
 
         self._add_inherited_fields()
         cls.pool.model_cache[cls.__bases__] = cls
-        cls._setup_extra_done = True
diff --git a/test_configuration_helper/models.py b/test_configuration_helper/models.py
index 75b7b621d..bfffe2ba7 100644
--- a/test_configuration_helper/models.py
+++ b/test_configuration_helper/models.py
@@ -16,4 +16,3 @@ class MyConfigA(models.TransientModel):
     _name = 'res.config.settings'
     _inherit = ['res.config.settings', 'abstract.config.settings']
     _prefix = 'prefix_a_'
-    _companyObject = ResCompany