diff --git a/tests/Fixtures/BuyableProductTrait.php b/tests/Fixtures/BuyableProductTrait.php
index 01dc681..d9d3572 100644
--- a/tests/Fixtures/BuyableProductTrait.php
+++ b/tests/Fixtures/BuyableProductTrait.php
@@ -20,6 +20,7 @@ class BuyableProductTrait extends Model implements Buyable
         'title',
         'description',
         'price',
+        'currency',
         'weight',
     ];