diff --git a/core/modules/views/src/ViewExecutable.php b/core/modules/views/src/ViewExecutable.php
index fc40f6a32e09285fcd1cf5df4236cef09691a8e3..87739a90c96c9381a6b6936abafdcb39336c9e95 100644
--- a/core/modules/views/src/ViewExecutable.php
+++ b/core/modules/views/src/ViewExecutable.php
@@ -8,6 +8,7 @@
 use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\Session\AccountInterface;
 use Drupal\views\Plugin\views\display\DisplayRouterInterface;
+use Drupal\views\Plugin\views\query\QueryPluginBase;
 use Drupal\views\Plugin\ViewsPluginManager;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -219,7 +220,7 @@ class ViewExecutable {
    *
    * @var \Drupal\views\Plugin\views\query\QueryPluginBase
    */
-  public $query = NULL;
+  public ?QueryPluginBase $query = NULL;
 
   /**
    * The used pager plugin used by the current executed view.