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..92376df 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
@@ -983,7 +983,7 @@ function validate_argument($arg) {
    *
    * @return TRUE if it successfully validates; FALSE if it does not.
    */
-  function set_argument($arg) {
+  public function setArgument($arg) {
     $this->argument = $arg;
     return $this->validateArgument($arg);
   }
@@ -1021,7 +1021,7 @@ function get_value() {
       $this->is_default = TRUE;
     }
     // Set the argument, which will also validate that the argument can be set.
-    if ($argument->set_argument($arg)) {
+    if ($argument->setArgument($arg)) {
       $value = $argument->argument;
     }
     unset($argument);
diff --git a/core/modules/views/lib/Drupal/views/ViewExecutable.php b/core/modules/views/lib/Drupal/views/ViewExecutable.php
index a8a8dd2..0a1c8e9 100644
--- a/core/modules/views/lib/Drupal/views/ViewExecutable.php
+++ b/core/modules/views/lib/Drupal/views/ViewExecutable.php
@@ -893,7 +893,7 @@ protected function _buildArguments() {
         }
 
         // Set the argument, which will also validate that the argument can be set.
-        if (!$argument->set_argument($arg)) {
+        if (!$argument->setArgument($arg)) {
           $status = $argument->validateFail($arg);
           break;
         }