diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php b/core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php
index 3f5ae443b3f9c87cb346ec7067f1a599c5a38a66..d4864cdefd3544c7aa97179f0574ab285b8f4cb1 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/argument/ArgumentPluginBase.php
@@ -651,7 +651,7 @@ public function defaultSummaryForm(&$form, &$form_state) {
    *   A boolean value; if TRUE, continue building this view. If FALSE,
    *   building the view will be aborted here.
    */
-  function default_action($info = NULL) {
+  public function defaultAction($info = NULL) {
     if (!isset($info)) {
       $info = $this->defaultActions($this->options['default_action']);
     }
@@ -673,7 +673,7 @@ function default_action($info = NULL) {
    */
   public function validateFail() {
     $info = $this->defaultActions($this->options['validate']['fail']);
-    return $this->default_action($info);
+    return $this->defaultAction($info);
   }
   /**
    * Default action: ignore.
diff --git a/core/modules/views/lib/Drupal/views/ViewExecutable.php b/core/modules/views/lib/Drupal/views/ViewExecutable.php
index d1ef4c355dd09d86637dd07e49b0099ba432241a..d3c939e1806d9ea237d681b432ab98ef99d53ac2 100644
--- a/core/modules/views/lib/Drupal/views/ViewExecutable.php
+++ b/core/modules/views/lib/Drupal/views/ViewExecutable.php
@@ -914,7 +914,7 @@ protected function _buildArguments() {
       }
       else {
         // determine default condition and handle.
-        $status = $argument->default_action();
+        $status = $argument->defaultAction();
         break;
       }