diff --git a/modules/sale/sale.py b/modules/sale/sale.py
index f0da407e35..97477d3f8f 100644
--- a/modules/sale/sale.py
+++ b/modules/sale/sale.py
@@ -1211,7 +1211,7 @@ class SaleLine(TaxableMixin, sequence_ordered(), ModelSQL, ModelView):
         "Actual Quantity", digits='unit', readonly=True,
         domain=[
             If(Eval('type') != 'line',
-                ('quantity', '=', None),
+                ('actual_quantity', '=', None),
                 ()),
             ],
         states={