diff --git a/src/pocketmine/utils/UUID.php b/src/pocketmine/utils/UUID.php
index 703d9fdc7..a870c00d4 100644
--- a/src/pocketmine/utils/UUID.php
+++ b/src/pocketmine/utils/UUID.php
@@ -38,8 +38,8 @@ use function trim;
 
 class UUID{
 
-	private $parts = [0, 0, 0, 0];
-	private $version = null;
+	private $parts;
+	private $version;
 
 	public function __construct(int $part1 = 0, int $part2 = 0, int $part3 = 0, int $part4 = 0, ?int $version = null){
 		$this->parts = [$part1, $part2, $part3, $part4];