diff --git a/src/Player.php b/src/Player.php
index 2eb21fd16..2e1ee4de9 100644
--- a/src/Player.php
+++ b/src/Player.php
@@ -887,7 +887,7 @@ class Player{
 				return false;
 			}
 			
-			if($pos instanceof Position and $pos->level !== $this->level){
+			if($pos instanceof Position and $pos->level instanceof Level and $pos->level !== $this->level){
 				if($this->server->api->dhandle("player.teleport.level", array("player" => $this, "origin" => $this->level, "target" => $pos->level)) === false){
 					$this->entity->check = true;
 					return false;
diff --git a/src/world/Entity.php b/src/world/Entity.php
index 112b6026e..1389a7f26 100644
--- a/src/world/Entity.php
+++ b/src/world/Entity.php
@@ -820,7 +820,7 @@ class Entity extends Position{
 	}
 
 	public function setPosition(Vector3 $pos, $yaw = false, $pitch = false){
-		if($pos instanceof Position and $this->level !== $pos->level){
+		if($pos instanceof Position and $pos->level instanceof Level and $this->level !== $pos->level){
 			$this->level = $pos->level;
 			$this->server->preparedSQL->entity->setLevel->reset();
 			$this->server->preparedSQL->entity->setLevel->clear();