diff --git a/addons/sale/models/sale_order.py b/addons/sale/models/sale_order.py
index d5140973548..c410b1abd14 100644
--- a/addons/sale/models/sale_order.py
+++ b/addons/sale/models/sale_order.py
@@ -179,7 +179,7 @@ class SaleOrder(models.Model):
     currency_rate = fields.Float(
         string="Currency Rate",
         compute='_compute_currency_rate',
-        digits=(12, 6),
+        digits=0,
         store=True, precompute=True)
     user_id = fields.Many2one(
         comodel_name='res.users',