diff --git a/addons/stock/models/product.py b/addons/stock/models/product.py
index 2b6d37a1b6a..5e3de7f0443 100644
--- a/addons/stock/models/product.py
+++ b/addons/stock/models/product.py
@@ -748,7 +748,9 @@ class UoM(models.Model):
         procurement_uom = self
         computed_qty = qty
         get_param = self.env['ir.config_parameter'].sudo().get_param
-        if procurement_uom.id != quant_uom.id and get_param('stock.propagate_uom') != '1':
+        if get_param('stock.propagate_uom') != '1':
             computed_qty = self._compute_quantity(qty, quant_uom, rounding_method='HALF-UP')
             procurement_uom = quant_uom
+        else:
+            computed_qty = self._compute_quantity(qty, procurement_uom, rounding_method='HALF-UP')
         return (computed_qty, procurement_uom)