diff --git a/tuf/download.py b/tuf/download.py
index 07d6ce9c..ad5188e1 100755
--- a/tuf/download.py
+++ b/tuf/download.py
@@ -26,7 +26,6 @@
 import os.path
 import socket
 import time
-import signal
 
 import tuf
 import tuf.hash