diff --git a/wavinfo/wave_reader.py b/wavinfo/wave_reader.py
index d2b12a7..85b68a0 100644
--- a/wavinfo/wave_reader.py
+++ b/wavinfo/wave_reader.py
@@ -1,7 +1,6 @@
 #-*- coding: utf-8 -*-
 import struct
 import os
-import sys
 from collections import namedtuple
 
 import pathlib