diff --git a/src/pocketmine/level/format/anvil/Chunk.php b/src/pocketmine/level/format/anvil/Chunk.php
index 0373a0d56..1fccad31f 100644
--- a/src/pocketmine/level/format/anvil/Chunk.php
+++ b/src/pocketmine/level/format/anvil/Chunk.php
@@ -170,7 +170,7 @@ class Chunk extends BaseChunk{
 		$entities = [];
 
 		foreach($this->getEntities() as $entity){
-			if(!($entity instanceof Player) and $entity->closed !== true){
+			if(!($entity instanceof Player) and !$entity->closed){
 				$entity->saveNBT();
 				$entities[] = $entity->namedtag;
 			}
diff --git a/src/pocketmine/tile/Tile.php b/src/pocketmine/tile/Tile.php
index 2444e6b33..b87fd6a43 100644
--- a/src/pocketmine/tile/Tile.php
+++ b/src/pocketmine/tile/Tile.php
@@ -49,7 +49,7 @@ abstract class Tile extends Position{
 	public $z;
 	public $attach;
 	public $metadata;
-	public $closed;
+	public $closed = false;
 	public $namedtag;
 	protected $lastUpdate;
 	protected $server;
@@ -69,7 +69,6 @@ abstract class Tile extends Position{
 		$this->chunk = $chunk;
 		$this->setLevel($chunk->getProvider()->getLevel());
 		$this->namedtag = $nbt;
-		$this->closed = false;
 		$this->name = "";
 		$this->lastUpdate = microtime(true);
 		$this->id = Tile::$tileCount++;
@@ -112,7 +111,7 @@ abstract class Tile extends Position{
 	}
 
 	public function close(){
-		if($this->closed === false){
+		if(!$this->closed){
 			$this->closed = true;
 			unset($this->level->updateTiles[$this->id]);
 			if($this->chunk instanceof FullChunk){