diff --git a/src/Events.php b/src/Events.php
index 2ef2357..5bd839c 100644
--- a/src/Events.php
+++ b/src/Events.php
@@ -43,7 +43,7 @@ protected function emitOnce(string $event, array $arguments = []): void
      *
      * @throws InvalidArgumentException If the event name is not valid
      */
-    public function on($event, callable $listener): static
+    public function on($event, callable $listener)
     {
         $this->assertValidEvent($event);
         $this->evenementUnvalidatedOn($event, $listener);