diff --git a/src/UserTypeForm.php b/src/UserTypeForm.php
index eb3a9c2..fb71c33 100644
--- a/src/UserTypeForm.php
+++ b/src/UserTypeForm.php
@@ -6,11 +6,13 @@ use Drupal\Core\Entity\BundleEntityFormBase;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\language\Entity\ContentLanguageSettings;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
 
 /**
  * Form handler for user type forms.
  */
 class UserTypeForm extends BundleEntityFormBase {
+  use StringTranslationTrait;
 
   /**
    * {@inheritdoc}
@@ -22,10 +24,10 @@ class UserTypeForm extends BundleEntityFormBase {
     $form['#title'] = ($this->operation == 'add') ? $this->t('Add account type') : $this->t('Edit %label account type', ['%label' => $this->entity->label()]);
 
     $form['label'] = [
-      '#title' => t('Name'),
+      '#title' => $this->t('Name'),
       '#type' => 'textfield',
       '#default_value' => $type->label(),
-      '#description' => t('The human-readable name of this account type.'),
+      '#description' => $this->t('The human-readable name of this account type.'),
       '#required' => TRUE,
       '#size' => 30,
     ];
@@ -39,22 +41,22 @@ class UserTypeForm extends BundleEntityFormBase {
         'exists' => ['Drupal\user_bundle\Entity\UserType', 'load'],
         'source' => ['label'],
       ],
-      '#description' => t('A unique machine-readable name for this account type. It must only contain lowercase letters, numbers, and underscores. This name will be used for constructing the URL of the %user-add page, in which underscores will be converted into hyphens.', [
-        '%user-add' => t('Add user'),
+      '#description' => $this->t('A unique machine-readable name for this account type. It must only contain lowercase letters, numbers, and underscores. This name will be used for constructing the URL of the %user-add page, in which underscores will be converted into hyphens.', [
+        '%user-add' => $this->t('Add user'),
       ]),
     ];
 
     $form['description'] = [
-      '#title' => t('Description'),
+      '#title' => $this->t('Description'),
       '#type' => 'textarea',
       '#default_value' => $type->getDescription(),
-      '#description' => t('This text will be displayed under this account type on the <em>Add new user</em> page.'),
+      '#description' => $this->t('This text will be displayed under this account type on the <em>Add new user</em> page.'),
     ];
 
     if ($this->moduleHandler->moduleExists('language')) {
       $form['language'] = [
         '#type' => 'details',
-        '#title' => t('Language settings'),
+        '#title' => $this->t('Language settings'),
       ];
 
       $language_configuration = ContentLanguageSettings::loadByEntityTypeBundle('user', $type->id());
@@ -76,8 +78,8 @@ class UserTypeForm extends BundleEntityFormBase {
    */
   protected function actions(array $form, FormStateInterface $form_state) {
     $actions = parent::actions($form, $form_state);
-    $actions['submit']['#value'] = t('Save account type');
-    $actions['delete']['#value'] = t('Delete account type');
+    $actions['submit']['#value'] = $this->t('Save account type');
+    $actions['delete']['#value'] = $this->t('Delete account type');
     return $actions;
   }
 
diff --git a/src/UserTypeListBuilder.php b/src/UserTypeListBuilder.php
index d34c5a5..f71fef0 100644
--- a/src/UserTypeListBuilder.php
+++ b/src/UserTypeListBuilder.php
@@ -5,6 +5,7 @@ namespace Drupal\user_bundle;
 use Drupal\Core\Config\Entity\ConfigEntityListBuilder;
 use Drupal\Core\Url;
 use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
 
 /**
  * Defines a class to build a listing of user type entities.
@@ -12,14 +13,15 @@ use Drupal\Core\Entity\EntityInterface;
  * @see \Drupal\user_bundle\Entity\UserType
  */
 class UserTypeListBuilder extends ConfigEntityListBuilder {
+  use StringTranslationTrait;
 
   /**
    * {@inheritdoc}
    */
   public function buildHeader() {
-    $header['title'] = t('Name');
+    $header['title'] = $this->t('Name');
     $header['description'] = [
-      'data' => t('Description'),
+      'data' => $this->t('Description'),
       'class' => [RESPONSIVE_PRIORITY_MEDIUM],
     ];
     return $header + parent::buildHeader();