diff -u b/core/modules/action/src/Plugin/Action/EmailAction.php b/core/modules/action/src/Plugin/Action/EmailAction.php
--- b/core/modules/action/src/Plugin/Action/EmailAction.php
+++ b/core/modules/action/src/Plugin/Action/EmailAction.php
@@ -91,7 +91,7 @@
    *   The mail manager.
    * @param \Drupal\Core\Language\LanguageManagerInterface
    *   The language manager.
-   * @param \Egulias\EmailValidator\EmailValidator
+   * @param \Egulias\EmailValidator\EmailValidator $email_validator
    *   The email validator.
    */
   public function __construct(array $configuration, $plugin_id, $plugin_definition, Token $token, EntityManagerInterface $entity_manager, LoggerInterface $logger, MailManagerInterface $mail_manager, LanguageManagerInterface $language_manager, EmailValidator $email_validator) {