diff --git a/tests/Fixtures/BuyableProduct.php b/tests/Fixtures/BuyableProduct.php
index fc317e5..b28699c 100644
--- a/tests/Fixtures/BuyableProduct.php
+++ b/tests/Fixtures/BuyableProduct.php
@@ -19,6 +19,7 @@ class BuyableProduct extends Model implements Buyable
         'title',
         'description',
         'price',
+        'currency',
         'weight',
     ];