diff --git a/src/pocketmine/scheduler/AsyncPool.php b/src/pocketmine/scheduler/AsyncPool.php
index 60e1bcac5..838a49dc9 100644
--- a/src/pocketmine/scheduler/AsyncPool.php
+++ b/src/pocketmine/scheduler/AsyncPool.php
@@ -239,6 +239,7 @@ class AsyncPool{
 
 					if($task->isCrashed()){
 						$this->logger->critical("Could not execute asynchronous task " . (new \ReflectionClass($task))->getShortName() . ": Task crashed");
+						$task->onError();
 					}elseif(!$task->hasCancelledRun()){
 						/*
 						 * It's possible for a task to submit a progress update and then finish before the progress
diff --git a/src/pocketmine/scheduler/AsyncTask.php b/src/pocketmine/scheduler/AsyncTask.php
index 65fbef49b..b063b79c1 100644
--- a/src/pocketmine/scheduler/AsyncTask.php
+++ b/src/pocketmine/scheduler/AsyncTask.php
@@ -183,6 +183,14 @@ abstract class AsyncTask extends \Threaded{
 
 	}
 
+	/**
+	 * Called from the main thread when the async task experiences an error during onRun(). Use this for things like
+	 * promise rejection.
+	 */
+	public function onError() : void{
+
+	}
+
 	/**
 	 * Saves mixed data in thread-local storage. Data stored using this storage is **only accessible from the thread it
 	 * was stored on**. Data stored using this method will **not** be serialized.