diff --git a/src/EventSubscriber/ResourceResponseValidator.php b/src/EventSubscriber/ResourceResponseValidator.php
index af306dd..79924a2 100644
--- a/src/EventSubscriber/ResourceResponseValidator.php
+++ b/src/EventSubscriber/ResourceResponseValidator.php
@@ -98,6 +98,21 @@ class ResourceResponseValidator implements EventSubscriberInterface {
     }
   }
 
+  /**
+   * Validates JSON:API responses.
+   *
+   * @param \Symfony\Component\HttpKernel\Event\FilterResponseEvent $event
+   *   The event to process.
+   */
+  public function onResponse(FilterResponseEvent $event) {
+    $response = $event->getResponse();
+    if (!$response instanceof ResourceResponse) {
+      return;
+    }
+
+    $this->doValidateResponse($response, $event->getRequest());
+  }
+
   /**
    * Wraps validation in an assert to prevent execution in production.
    *