diff --git a/core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php b/core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php
index a6bd6ac..ecfece8 100644
--- a/core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php
+++ b/core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php
@@ -463,7 +463,7 @@ public function submitOptionsForm(&$form, FormStateInterface $form_state) {
     // validation options.
     if (empty($option_values['specify_validation'])) {
       $option_values['validate']['type'] = 'none';
-      $option_values['validate']['options'] = array();
+      $option_values['validate']['options'] = ['none' => []];
       $option_values['validate']['fail'] = 'not found';
     }