diff --git a/gensim/matutils.py b/gensim/matutils.py
index c0a51ce0e8..7e99b82e7c 100644
--- a/gensim/matutils.py
+++ b/gensim/matutils.py
@@ -11,7 +11,7 @@
 from itertools import chain
 import logging
 import math
-import sys
+
 from gensim import utils
 
 import numpy as np