diff --git a/routes/web.php b/routes/web.php
index 21f5fb06..1d28dc08 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -745,7 +745,7 @@ Route::get('/generate/invoices', function(){
         $billingAddress = $companyModule->addresses()->where('type', \App\Classes\ValueObjects\Constants\AddressType::BILLING)->first();
         $deliveryAddress = $order->addresses()->where('status', ApprovalStatus::APPROVED)->first();
 
-        $postCodes = \App\Models\SegmentConstant::whereIn('reference', ['CENTER_POSTCODE', 'OUTSTATION_POSTCODE'])->get()->pluck('value');
+        $postCodes = \App\Models\SegmentConstant::whereIn('reference', ['CENTER_POSTCODE', 'OUTSTATION_POSTCODE'])->get()->pluck('value')->flatten();
 
         dump($deliveryAddress->postcode, $postCodes->toArray());
         if(!!$billingAddress && in_array($deliveryAddress->postcode, $postCodes->toArray())){