diff --git a/src/pocketmine/level/biome/GrassyBiome.php b/src/pocketmine/level/biome/GrassyBiome.php
index e93c1d44b..ad327b659 100644
--- a/src/pocketmine/level/biome/GrassyBiome.php
+++ b/src/pocketmine/level/biome/GrassyBiome.php
@@ -30,11 +30,11 @@ abstract class GrassyBiome extends Biome{
 
 	public function __construct(){
 		$this->setGroundCover([
-			BlockFactory::get(Block::GRASS, 0),
-			BlockFactory::get(Block::DIRT, 0),
-			BlockFactory::get(Block::DIRT, 0),
-			BlockFactory::get(Block::DIRT, 0),
-			BlockFactory::get(Block::DIRT, 0),
+			BlockFactory::get(Block::GRASS),
+			BlockFactory::get(Block::DIRT),
+			BlockFactory::get(Block::DIRT),
+			BlockFactory::get(Block::DIRT),
+			BlockFactory::get(Block::DIRT)
 		]);
 	}
 }
diff --git a/src/pocketmine/level/biome/SandyBiome.php b/src/pocketmine/level/biome/SandyBiome.php
index 183aa6097..e033c10e6 100644
--- a/src/pocketmine/level/biome/SandyBiome.php
+++ b/src/pocketmine/level/biome/SandyBiome.php
@@ -30,11 +30,11 @@ abstract class SandyBiome extends Biome{
 
 	public function __construct(){
 		$this->setGroundCover([
-			BlockFactory::get(Block::SAND, 0),
-			BlockFactory::get(Block::SAND, 0),
-			BlockFactory::get(Block::SANDSTONE, 0),
-			BlockFactory::get(Block::SANDSTONE, 0),
-			BlockFactory::get(Block::SANDSTONE, 0)
+			BlockFactory::get(Block::SAND),
+			BlockFactory::get(Block::SAND),
+			BlockFactory::get(Block::SANDSTONE),
+			BlockFactory::get(Block::SANDSTONE),
+			BlockFactory::get(Block::SANDSTONE)
 		]);
 	}
 }
diff --git a/src/pocketmine/level/biome/SnowyBiome.php b/src/pocketmine/level/biome/SnowyBiome.php
index d560bd325..463deae4b 100644
--- a/src/pocketmine/level/biome/SnowyBiome.php
+++ b/src/pocketmine/level/biome/SnowyBiome.php
@@ -30,11 +30,11 @@ abstract class SnowyBiome extends Biome{
 
 	public function __construct(){
 		$this->setGroundCover([
-			BlockFactory::get(Block::SNOW_LAYER, 0),
-			BlockFactory::get(Block::GRASS, 0),
-			BlockFactory::get(Block::DIRT, 0),
-			BlockFactory::get(Block::DIRT, 0),
-			BlockFactory::get(Block::DIRT, 0)
+			BlockFactory::get(Block::SNOW_LAYER),
+			BlockFactory::get(Block::GRASS),
+			BlockFactory::get(Block::DIRT),
+			BlockFactory::get(Block::DIRT),
+			BlockFactory::get(Block::DIRT)
 		]);
 	}
 }