diff --git a/src/Events/Event.php b/src/Events/Event.php
index 3f1d81b1d..9534b8a78 100644
--- a/src/Events/Event.php
+++ b/src/Events/Event.php
@@ -102,7 +102,8 @@ public function delay(float $delay, callable $func, array $args = []): int
     {
         $className = $this->eventClassName;
         $timerId = $this->timerId++;
-        $event = new $className($this->eventBase, -1, $className::TIMEOUT, function () use ($func, $args) {
+        $event = new $className($this->eventBase, -1, $className::TIMEOUT, function () use ($func, $args, $timerId) {
+            unset($this->eventTimer[$timerId]);
             try {
                 $func(...$args);
             } catch (Throwable $e) {