diff --git a/src/pocketmine/level/format/io/ChunkUtils.php b/src/pocketmine/level/format/io/ChunkUtils.php
index 3645b9b53..0bfb52fdc 100644
--- a/src/pocketmine/level/format/io/ChunkUtils.php
+++ b/src/pocketmine/level/format/io/ChunkUtils.php
@@ -98,7 +98,7 @@ if(!extension_loaded('pocketmine_chunkutils')){
 		 * Converts pre-MCPE-1.0 biome color array to biome ID array.
 		 *
 		 * @param int[] $array of biome color values
-		 * @phpstan-param array<int, int> $array
+		 * @phpstan-param list<int> $array
 		 */
 		public static function convertBiomeColors(array $array) : string{
 			$result = str_repeat("\x00", 256);