diff --git a/addons/purchase/models/product.py b/addons/purchase/models/product.py
index 49897429a4e..2de7e229044 100644
--- a/addons/purchase/models/product.py
+++ b/addons/purchase/models/product.py
@@ -91,3 +91,11 @@ class ProductCategory(models.Model):
         'account.account', string="Price Difference Account",
         company_dependent=True,
         help="This account will be used to value price difference between purchase price and accounting cost.")
+
+
+class SupplierInfo(models.Model):
+    _inherit = "product.supplierinfo"
+
+    @api.onchange('name')
+    def _onchange_partner_id(self):
+        self.currency_id = self.name.property_purchase_currency_id or self.env.user.company_id.currency_id