diff --git a/modules/purchase/purchase.py b/modules/purchase/purchase.py
index 0b7605ecce..2fdabd99b0 100644
--- a/modules/purchase/purchase.py
+++ b/modules/purchase/purchase.py
@@ -2125,7 +2125,7 @@ class Line(sequence_ordered(), ModelSQL, ModelView):
                             purchase=line.purchase.rec_name))
         elif mode == 'delete':
             for line in lines:
-                if line.purchase_state not in {'cancelled', 'draft'}:
+                if line.purchase.state not in {'cancelled', 'draft'}:
                     raise AccessError(gettext(
                             'purchase.msg_purchase_line_delete_cancel_draft',
                             line=line.rec_name,
diff --git a/modules/sale/sale.py b/modules/sale/sale.py
index 2f81e729d0..d59961cbf0 100644
--- a/modules/sale/sale.py
+++ b/modules/sale/sale.py
@@ -2258,7 +2258,7 @@ class SaleLine(TaxableMixin, sequence_ordered(), ModelSQL, ModelView):
                             sale=line.sale.rec_name))
         elif mode == 'delete':
             for line in lines:
-                if line.sale_state not in {'cancelled', 'draft'}:
+                if line.sale.state not in {'cancelled', 'draft'}:
                     raise AccessError(gettext(
                             'sale.msg_sale_line_delete_cancel_draft',
                             line=line.rec_name,