diff --git a/src/pocketmine/scheduler/SendUsageTask.php b/src/pocketmine/scheduler/SendUsageTask.php
index 689b4ae4d..0c9b55e49 100644
--- a/src/pocketmine/scheduler/SendUsageTask.php
+++ b/src/pocketmine/scheduler/SendUsageTask.php
@@ -21,6 +21,7 @@
 
 namespace pocketmine\scheduler;
 
+use pocketmine\Server;
 use pocketmine\utils\Utils;
 
 class SendUsageTask extends AsyncTask{
@@ -37,4 +38,8 @@ class SendUsageTask extends AsyncTask{
 		Utils::postURL($this->endpoint, unserialize($this->data));
 	}
 
+	public function onCompletion(Server $server){
+
+	}
+
 }