diff --git a/addons/website_sale/models/website.py b/addons/website_sale/models/website.py
index f3aff71c14c..c924bbb886e 100644
--- a/addons/website_sale/models/website.py
+++ b/addons/website_sale/models/website.py
@@ -394,7 +394,7 @@ class WebsiteSaleExtraField(models.Model):
     sequence = fields.Integer(default=10)
     field_id = fields.Many2one(
         'ir.model.fields',
-        domain=[('model_id.model', '=', 'product.template')]
+        domain=[('model_id.model', '=', 'product.template'), ('ttype', 'in', ['char', 'binary'])]
     )
     label = fields.Char(related='field_id.field_description')
     name = fields.Char(related='field_id.name')