diff --git a/src/pocketmine/network/mcpe/RakLibInterface.php b/src/pocketmine/network/mcpe/RakLibInterface.php
index 722947b1d..6936a55ce 100644
--- a/src/pocketmine/network/mcpe/RakLibInterface.php
+++ b/src/pocketmine/network/mcpe/RakLibInterface.php
@@ -70,10 +70,6 @@ class RakLibInterface implements ServerInstance, AdvancedNetworkInterface{
 		$this->server = $server;
 
 		$this->sleeper = new SleeperNotifier();
-		$server->getTickSleeper()->addNotifier($this->sleeper, function() : void{
-			//this should not throw any exception. If it does, this should crash the server since it's a fault condition.
-			while($this->interface->handlePacket());
-		});
 
 		$this->rakLib = new RakLibServer(
 			$this->server->getLogger(),
@@ -87,6 +83,10 @@ class RakLibInterface implements ServerInstance, AdvancedNetworkInterface{
 	}
 
 	public function start() : void{
+		$this->server->getTickSleeper()->addNotifier($this->sleeper, function() : void{
+			//this should not throw any exception. If it does, this should crash the server since it's a fault condition.
+			while($this->interface->handlePacket());
+		});
 		$this->rakLib->start(PTHREADS_INHERIT_CONSTANTS); //HACK: MainLogger needs constants for exception logging
 	}