diff --git a/src/pocketmine/level/format/io/region/RegionLoader.php b/src/pocketmine/level/format/io/region/RegionLoader.php
index 50ad07748..1412f759d 100644
--- a/src/pocketmine/level/format/io/region/RegionLoader.php
+++ b/src/pocketmine/level/format/io/region/RegionLoader.php
@@ -29,7 +29,6 @@ use pocketmine\utils\Binary;
 use pocketmine\utils\MainLogger;
 
 class RegionLoader{
-	public const VERSION = 1;
 	public const COMPRESSION_GZIP = 1;
 	public const COMPRESSION_ZLIB = 2;