diff --git a/core/modules/block/lib/Drupal/block/Plugin/views/display/Block.php b/core/modules/block/lib/Drupal/block/Plugin/views/display/Block.php
index 286e421..eb7567f 100644
--- a/core/modules/block/lib/Drupal/block/Plugin/views/display/Block.php
+++ b/core/modules/block/lib/Drupal/block/Plugin/views/display/Block.php
@@ -49,7 +49,7 @@ protected function defineOptions() {
 
     $options['allow'] = array(
       'contains' => array(
-        'items_per_page' => array('default' => TRUE),
+        'items_per_page' => array('default' => array('items_per_page' => TRUE)),
       ),
     );