diff --git a/app/Http/Resources/MappableTransactionWithDetailsResource.php b/app/Http/Resources/MappableTransactionWithDetailsResource.php
index bf1fcf1d..1b287a75 100644
--- a/app/Http/Resources/MappableTransactionWithDetailsResource.php
+++ b/app/Http/Resources/MappableTransactionWithDetailsResource.php
@@ -32,7 +32,7 @@ class MappableTransactionWithDetailsResource extends JsonResource
 
         if ($this->type === TransactionType::PAYMENT) {
             $order = $this->owner->owner->owner;
-            $data['order_reference'] = $order->reference;
+            $data['order_reference'] = $order->reference ?? '';
             $data['debtor_code'] = $order->companyModule->company->debtor;
             $data['created_at'] = $this->owner->created_at; // invoice date
         } elseif (in_array($this->type, [TransactionType::GROUP_PAYMENT, TransactionType::TOP_UP])) {
@@ -52,7 +52,7 @@ class MappableTransactionWithDetailsResource extends JsonResource
                         'id' => $payment->id,
                         'updated_at' => $payment->updated_at,
                         'debtor_code' => $order->companyModule->company->debtor,
-                        'order_reference' => $order->reference,
+                        'order_reference' => $order->reference ?? '',
                         'bill_no' => null,
                         'type' => $payment->type,
                         'marking' => null,