diff --git a/src/pocketmine/network/rcon/RCONInstance.php b/src/pocketmine/network/rcon/RCONInstance.php
index 8d16ddee3..9430eccbd 100644
--- a/src/pocketmine/network/rcon/RCONInstance.php
+++ b/src/pocketmine/network/rcon/RCONInstance.php
@@ -95,7 +95,7 @@ class RCONInstance extends Thread{
 	}
 
 	public function run(){
-
+		$this->registerClassLoader();
 		while($this->stop !== true){
 			$this->synchronized(function(){
 				$this->wait(2000);