diff --git a/addons/stock/models/stock_move.py b/addons/stock/models/stock_move.py
index 38c46a534c6..d88ad3229f2 100644
--- a/addons/stock/models/stock_move.py
+++ b/addons/stock/models/stock_move.py
@@ -797,7 +797,11 @@ class StockMove(models.Model):
             # compute quantities for each lot + check quantities match
             lot_quantities = dict((pack_lot.lot_id.id, operation.product_uom_id._compute_quantity(pack_lot.qty, operation.product_id.uom_id)
             ) for pack_lot in operation.pack_lot_ids)
-            if operation.pack_lot_ids and float_compare(sum(lot_quantities.values()), operation.product_qty, precision_rounding=operation.product_uom_id.rounding) != 0.0:
+
+            qty = operation.product_qty
+            if operation.product_uom_id and operation.product_uom_id != operation.product_id.uom_id:
+                qty = operation.product_uom_id._compute_quantity(qty, operation.product_id.uom_id)
+            if operation.pack_lot_ids and float_compare(sum(lot_quantities.values()), qty, precision_rounding=operation.product_id.uom_id.rounding) != 0.0:
                 raise UserError(_('You have a difference between the quantity on the operation and the quantities specified for the lots. '))
 
             quants_taken = []