diff --git a/tests/phpunit/BitSetTest.php b/tests/phpunit/BitSetTest.php
index f16c2c16..38a9f556 100644
--- a/tests/phpunit/BitSetTest.php
+++ b/tests/phpunit/BitSetTest.php
@@ -18,7 +18,6 @@
 use pocketmine\network\mcpe\protocol\serializer\BitSet;
 use pocketmine\network\mcpe\protocol\serializer\PacketSerializer;
 use function PHPUnit\Framework\assertTrue;
-use function var_dump;
 
 class BitSetTest extends TestCase{