diff --git a/src/world/format/BiomeArray.php b/src/world/format/BiomeArray.php
index ca91fbea0..30a5d2cb0 100644
--- a/src/world/format/BiomeArray.php
+++ b/src/world/format/BiomeArray.php
@@ -25,6 +25,7 @@ namespace pocketmine\world\format;
 
 use function chr;
 use function ord;
+use function str_repeat;
 use function strlen;
 
 final class BiomeArray{
@@ -42,6 +43,10 @@ final class BiomeArray{
 		$this->payload = $payload;
 	}
 
+	public static function fill(int $biomeId) : self{
+		return new BiomeArray(str_repeat(chr($biomeId), 256));
+	}
+
 	private static function idx(int $x, int $z) : int{
 		if($x < 0 or $x >= 16 or $z < 0 or $z >= 16){
 			throw new \InvalidArgumentException("x and z must be in the range 0-15");
diff --git a/src/world/format/Chunk.php b/src/world/format/Chunk.php
index c6d0fd668..286325807 100644
--- a/src/world/format/Chunk.php
+++ b/src/world/format/Chunk.php
@@ -35,12 +35,12 @@ use pocketmine\nbt\tag\CompoundTag;
 use pocketmine\nbt\tag\IntTag;
 use pocketmine\nbt\tag\StringTag;
 use pocketmine\player\Player;
+use pocketmine\world\biome\Biome;
 use pocketmine\world\World;
 use function array_fill;
 use function array_filter;
 use function array_map;
 use function count;
-use function str_repeat;
 
 class Chunk{
 	public const DIRTY_FLAG_TERRAIN = 1 << 0;
@@ -106,7 +106,7 @@ class Chunk{
 
 		$val = ($this->subChunks->getSize() * 16);
 		$this->heightMap = $heightMap ?? new HeightArray(array_fill(0, 256, $val));
-		$this->biomeIds = $biomeIds ?? new BiomeArray(str_repeat("\x00", 256));
+		$this->biomeIds = $biomeIds ?? BiomeArray::fill(Biome::OCEAN);
 
 		$this->NBTtiles = $tiles;
 		$this->NBTentities = $entities;