diff --git a/app/Http/Controllers/BillplzTransactionSummaryController.php b/app/Http/Controllers/BillplzTransactionSummaryController.php
index bab9287..2d8b270 100644
--- a/app/Http/Controllers/BillplzTransactionSummaryController.php
+++ b/app/Http/Controllers/BillplzTransactionSummaryController.php
@@ -23,7 +23,7 @@ class BillplzTransactionSummaryController extends Controller
 	$billIds = $billIds->toArray();
         $billplzBills = Http::get(config('api.url_arrahn_portal') . '/api/billplz', ['bill_ids' => json_encode($billIds)])->json();
 
-	$data =  array_map(fn($x, $y) => $this->processBillplzBills($x, $y), $billplzBills, [$transactionDataKOOP, $transactionDataPKB]);
+	$data =  array_map(fn($x, $y) => $this->processBillplzBills($x, $y), $billplzBills, [$transactionDataPKB, $transactionDataKOOP]);
 
 	[$billPlzTransactionSummaryPKB, $billPlzTransactionSummaryKOOP] = $data;