diff --git a/youtube_dl/YoutubeDL.py b/youtube_dl/YoutubeDL.py
index 927b19417..2a1e59bf8 100755
--- a/youtube_dl/YoutubeDL.py
+++ b/youtube_dl/YoutubeDL.py
@@ -5,7 +5,6 @@ from __future__ import absolute_import, unicode_literals
 
 import collections
 import contextlib
-import copy
 import datetime
 import errno
 import fileinput