diff --git a/src/pocketmine/level/biome/GrassyBiome.php b/src/pocketmine/level/biome/GrassyBiome.php
index 5b7861456..e93c1d44b 100644
--- a/src/pocketmine/level/biome/GrassyBiome.php
+++ b/src/pocketmine/level/biome/GrassyBiome.php
@@ -26,7 +26,7 @@ namespace pocketmine\level\biome;
 use pocketmine\block\Block;
 use pocketmine\block\BlockFactory;
 
-abstract class GrassyBiome extends NormalBiome{
+abstract class GrassyBiome extends Biome{
 
 	public function __construct(){
 		$this->setGroundCover([
diff --git a/src/pocketmine/level/biome/NormalBiome.php b/src/pocketmine/level/biome/NormalBiome.php
deleted file mode 100644
index 01e4f4e2d..000000000
--- a/src/pocketmine/level/biome/NormalBiome.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-/*
- *
- *  ____            _        _   __  __ _                  __  __ ____
- * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
- * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
- * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
- * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * @author PocketMine Team
- * @link http://www.pocketmine.net/
- *
- *
-*/
-
-declare(strict_types=1);
-
-namespace pocketmine\level\biome;
-
-abstract class NormalBiome extends Biome{
-
-}
diff --git a/src/pocketmine/level/biome/OceanBiome.php b/src/pocketmine/level/biome/OceanBiome.php
index 834e9bf76..174ac70e4 100644
--- a/src/pocketmine/level/biome/OceanBiome.php
+++ b/src/pocketmine/level/biome/OceanBiome.php
@@ -27,7 +27,7 @@ use pocketmine\block\Block;
 use pocketmine\block\BlockFactory;
 use pocketmine\level\generator\populator\TallGrass;
 
-class OceanBiome extends NormalBiome{
+class OceanBiome extends Biome{
 
 	public function __construct(){
 		$this->setGroundCover([
diff --git a/src/pocketmine/level/biome/RiverBiome.php b/src/pocketmine/level/biome/RiverBiome.php
index 1b827db9c..f52c97861 100644
--- a/src/pocketmine/level/biome/RiverBiome.php
+++ b/src/pocketmine/level/biome/RiverBiome.php
@@ -27,7 +27,7 @@ use pocketmine\block\Block;
 use pocketmine\block\BlockFactory;
 use pocketmine\level\generator\populator\TallGrass;
 
-class RiverBiome extends NormalBiome{
+class RiverBiome extends Biome{
 
 	public function __construct(){
 		$this->setGroundCover([
diff --git a/src/pocketmine/level/biome/SandyBiome.php b/src/pocketmine/level/biome/SandyBiome.php
index 1cc6c178b..183aa6097 100644
--- a/src/pocketmine/level/biome/SandyBiome.php
+++ b/src/pocketmine/level/biome/SandyBiome.php
@@ -26,7 +26,7 @@ namespace pocketmine\level\biome;
 use pocketmine\block\Block;
 use pocketmine\block\BlockFactory;
 
-abstract class SandyBiome extends NormalBiome{
+abstract class SandyBiome extends Biome{
 
 	public function __construct(){
 		$this->setGroundCover([
diff --git a/src/pocketmine/level/biome/SnowyBiome.php b/src/pocketmine/level/biome/SnowyBiome.php
index 8d46f0487..d560bd325 100644
--- a/src/pocketmine/level/biome/SnowyBiome.php
+++ b/src/pocketmine/level/biome/SnowyBiome.php
@@ -26,7 +26,7 @@ namespace pocketmine\level\biome;
 use pocketmine\block\Block;
 use pocketmine\block\BlockFactory;
 
-abstract class SnowyBiome extends NormalBiome{
+abstract class SnowyBiome extends Biome{
 
 	public function __construct(){
 		$this->setGroundCover([