diff --git a/tests/Feature/ProductTest.php b/tests/Feature/ProductTest.php
index 2bdd330f198e..40af31f9a9cc 100644
--- a/tests/Feature/ProductTest.php
+++ b/tests/Feature/ProductTest.php
@@ -100,7 +100,7 @@ class ProductTest extends TestCase
 
                 foreach ($line_items as $key => $item) {
 
-                    if($item?->product_cost == 0 && $product = Product::where('company_id', $invoice->company_id)->where('product_key', $item->product_key)->where('cost', '>', 0)->first()) {
+                    if(property_exists($item, 'product_cost') && $item->product_cost == 0 && $product = Product::where('company_id', $invoice->company_id)->where('product_key', $item->product_key)->where('cost', '>', 0)->first()) {
                         $line_items[$key]->product_cost = $product->cost;
                     }
                 }