diff --git a/app/modules/accounting/accounting_mirror_service.py b/app/modules/accounting/accounting_mirror_service.py
index 0e29802..685bbd8 100644
--- a/app/modules/accounting/accounting_mirror_service.py
+++ b/app/modules/accounting/accounting_mirror_service.py
@@ -596,7 +596,7 @@ def sundry_creditors_aging(
         # Non-purchase credits remain visibly distinguished in the drill-down;
         # they are not represented as purchase bills.
         closing_lots = sorted(
-            closing_lots + non_purchase_credit_lots,
+            closing_lots,
             key=lambda lot: (
                 _parse_date(lot.get("voucher_date")) or opening_fallback_date,
                 str(lot.get("voucher_number") or ""),