diff --git a/src/ApiResource/Gateway/ChargeApiResource.php b/src/ApiResource/Gateway/ChargeApiResource.php
index 9136e83..98c1d5a 100644
--- a/src/ApiResource/Gateway/ChargeApiResource.php
+++ b/src/ApiResource/Gateway/ChargeApiResource.php
@@ -21,14 +21,18 @@ use Symfony\Component\Validator\Constraints as Assert;
     provider: ApiResourceStateProvider::class
 )]
 #[API\Get()]
-#[API\GetCollection(
-    security: "is_granted('IS_AUTHENTICATED_FULLY')"
-)]
+#[API\GetCollection(security: "is_granted('IS_AUTHENTICATED_FULLY')")]
 class ChargeApiResource
 {
     #[API\ApiProperty(writable: false, identifier: true)]
     public ?int $id = null;
 
+    /**
+     * The Checkout to which this Charge item belongs to.
+     */
+    #[API\ApiProperty(writable: false)]
+    public CheckoutApiResource $checkout;
+
     /**
      * How this item should be processed by the Gateway.\
      * \