diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index eefdd1de8..c5db920bf 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -20,6 +20,7 @@ parameters:
 		- pocketmine\DEBUG
 	stubFiles:
 		- tests/phpstan/stubs/pthreads.stub
+		- tests/phpstan/stubs/chunkutils.stub
 	reportUnmatchedIgnoredErrors: false #no other way to silence platform-specific non-warnings
 	ignoreErrors:
 		-
diff --git a/tests/phpstan/stubs/chunkutils.stub b/tests/phpstan/stubs/chunkutils.stub
new file mode 100644
index 000000000..245c6ae04
--- /dev/null
+++ b/tests/phpstan/stubs/chunkutils.stub
@@ -0,0 +1,26 @@
+<?php
+
+namespace pocketmine\level\format\io;
+
+class ChunkUtils{
+	/**
+	 * @param string $byte_array
+	 *
+	 * @return string
+	 */
+	public static function reorderByteArray($byte_array){}
+
+	/**
+	 * @param string $nibble_array
+	 *
+	 * @return string
+	 */
+	public static function reorderNibbleArray($nibble_array){}
+
+	/**
+	 * @param int[] $color_array
+	 *
+	 * @return string
+	 */
+	public static function convertBiomeColors($color_array){}
+}