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 117ade9..49dc0b8 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
@@ -444,7 +444,7 @@ function default_actions($which = NULL) {
     $defaults = array(
       'ignore' => array(
         'title' => t('Display all results for the specified field'),
-        'method' => 'default_ignore',
+        'method' => 'defaultIgnore',
         'breadcrumb' => TRUE, // generate a breadcrumb to here
       ),
       'default' => array(
@@ -681,7 +681,7 @@ public function validateFail() {
    * If an argument was expected and was not given, in this case, simply
    * ignore the argument entirely.
    */
-  function default_ignore() {
+  function defaultIgnore() {
     return TRUE;
   }