diff --git a/segpy/toolkit.py b/segpy/toolkit.py
index 4830d3f..6e2defb 100644
--- a/segpy/toolkit.py
+++ b/segpy/toolkit.py
@@ -6,7 +6,6 @@ import itertools
 import os
 import struct
 import re
-import sys
 import logging
 
 from segpy import textual_reel_header_definition