diff --git a/Event/EventManager.php b/Event/EventManager.php
index 6698f4872..4ecc0e40e 100644
--- a/Event/EventManager.php
+++ b/Event/EventManager.php
@@ -75,7 +75,7 @@ class EventManager implements Mediator
     /**
      * {@inheritdoc}
      */
-    public function trigger(string $group, string $id = '') /* : void */
+    public function trigger(string $group, string $id = '', bool $reset = false) /* : void */
     {
         if (isset($this->groups[$group])) {
             unset($this->groups[$group][$id]);
diff --git a/Pattern/Mediator.php b/Pattern/Mediator.php
index a54fdb56e..d4b48d926 100644
--- a/Pattern/Mediator.php
+++ b/Pattern/Mediator.php
@@ -79,11 +79,12 @@ interface Mediator extends \Countable
      *
      * @param string $group Group
      * @param string $id    Event ID
+     * @param bool $reset Reset if success
      *
      * @return void
      *
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function trigger(string $group, string $id) /* : void */;
+    public function trigger(string $group, string $id, bool $reset = false) /* : void */;
 }