diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/filter/FilterPluginBase.php b/core/modules/views/lib/Drupal/views/Plugin/views/filter/FilterPluginBase.php
index e0dd2d5..9bd00d2 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/filter/FilterPluginBase.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/filter/FilterPluginBase.php
@@ -348,7 +348,7 @@ function show_build_group_form(&$form, &$form_state) {
       return;
     }
 
-    $this->build_group_form($form, $form_state);
+    $this->buildGroupForm($form, $form_state);
 
     // When we click the expose button, we add new gadgets to the form but they
     // have no data in $_POST so their defaults get wiped out. This prevents
@@ -829,7 +829,7 @@ public function buildExposedForm(&$form, &$form_state) {
    * Build the form to let users create the group of exposed filters.
    * This form is displayed when users click on button 'Build group'
    */
-  function build_group_form(&$form, &$form_state) {
+  function buildGroupForm(&$form, &$form_state) {
     if (empty($this->options['exposed']) || empty($this->options['is_grouped'])) {
       return;
     }
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardInterface.php b/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardInterface.php
index cd340fb..0a001f7 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardInterface.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardInterface.php
@@ -26,7 +26,7 @@
    * @return array
    *   Returns the changed wizard form.
    */
-  function build_form(array $form, array &$form_state);
+  function buildForm(array $form, array &$form_state);
 
   /**
    * Validate form and values.
diff --git a/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php b/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php
index 3945ae0..ee66a7a 100644
--- a/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php
+++ b/core/modules/views/lib/Drupal/views/Plugin/views/wizard/WizardPluginBase.php
@@ -198,9 +198,9 @@ public function getSorts() {
   }
 
   /**
-   * Implements Drupal\views\Plugin\views\wizard\WizardInterface::build_form().
+   * Implements Drupal\views\Plugin\views\wizard\WizardInterface::buildForm().
    */
-  function build_form(array $form, array &$form_state) {
+  function buildForm(array $form, array &$form_state) {
     $style_options = views_fetch_plugin_names('style', 'normal', array($this->base_table));
     $feed_row_options = views_fetch_plugin_names('row', 'feed', array($this->base_table));
     $path_prefix = url(NULL, array('absolute' => TRUE));