diff --git a/packaging_uom/tests/test_product_packaging.py b/packaging_uom/tests/test_product_packaging.py
index 90f2e59ccc9..7fee6a067a9 100644
--- a/packaging_uom/tests/test_product_packaging.py
+++ b/packaging_uom/tests/test_product_packaging.py
@@ -58,7 +58,7 @@ def test_compute_quantity_by_package(self):
                 "uom_id": self.uom_dozen.id,
             }
         )
-        self.assertAlmostEqual(self.product_unit.uom_id.factor_inv, 12.0)
+        self.assertAlmostEqual(self.uom_dozen.factor_inv, 12.0)
         self.assertAlmostEqual(product_packaging_unit.qty, 12.0)
         self.assertEqual(
             self.uom_dozen.category_id,