diff --git a/addons/purchase/models/purchase.py b/addons/purchase/models/purchase.py
index 0a66dca7d33..4e86471a892 100644
--- a/addons/purchase/models/purchase.py
+++ b/addons/purchase/models/purchase.py
@@ -552,7 +552,7 @@ class PurchaseOrderLine(models.Model):
             taxes = line.product_id.supplier_taxes_id.filtered(lambda r: not line.company_id or r.company_id == line.company_id)
             line.taxes_id = fpos.map_tax(taxes, line.product_id, line.order_id.partner_id) if fpos else taxes
 
-    @api.depends('invoice_lines.invoice_id.state', 'invoice_lines.quantity')
+    @api.depends('invoice_lines.invoice_id.state', 'invoice_lines.quantity', 'invoice_lines.uom_id')
     def _compute_qty_invoiced(self):
         for line in self:
             qty = 0.0