diff --git a/partner_fax/models/res_company b/partner_fax/models/res_company
new file mode 100644
index 000000000..79992887c
--- /dev/null
+++ b/partner_fax/models/res_company
@@ -0,0 +1,11 @@
+# © 2018 Apruzzese Francesco <f.apruzzese@apuliasoftware.it>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import fields, models
+
+
+class ResCompany(models.Model):
+
+    _inherit = 'res.company'
+
+    fax = fields.Char()