diff --git a/hightlight_duplicates.py b/hightlight_duplicates.py
index 341dc35..fac2903 100644
--- a/hightlight_duplicates.py
+++ b/hightlight_duplicates.py
@@ -19,7 +19,6 @@
 # inspired by https://github.com/SublimeText/TrailingSpaces
 import sublime
 import sublime_plugin
-import sys
 from collections import defaultdict
 
 DEFAULT_COLOR_SCOPE_NAME = "invalid"