diff --git a/voicemeeterlib/util.py b/voicemeeterlib/util.py
index 783a081..a164b33 100644
--- a/voicemeeterlib/util.py
+++ b/voicemeeterlib/util.py
@@ -1,4 +1,3 @@
-import copy
 import functools
 from itertools import zip_longest
 from typing import Iterator