diff --git a/src/pocketmine/level/format/leveldb/Chunk.php b/src/pocketmine/level/format/leveldb/Chunk.php
index dafe439c8..cccff1335 100644
--- a/src/pocketmine/level/format/leveldb/Chunk.php
+++ b/src/pocketmine/level/format/leveldb/Chunk.php
@@ -323,7 +323,7 @@ class Chunk extends BaseFullChunk{
 
 		}
 
-		$heighmap = pack("C*", ...$this->getHeightMapArray());
+		$heightmap = pack("C*", ...$this->getHeightMapArray());
 		$biomeColors = pack("N*", ...$this->getBiomeColorArray());
 
 		return $chunkIndex .
@@ -331,9 +331,9 @@ class Chunk extends BaseFullChunk{
 			$this->getBlockDataArray() .
 			$this->getBlockSkyLightArray() .
 			$this->getBlockLightArray() .
-			$heighmap .
+			$heightmap .
 			$biomeColors . chr(
 				($this->isPopulated() ? 0x02 : 0) | ($this->isGenerated() ? 0x01 : 0)
 			);
 	}
-}
\ No newline at end of file
+}