diff --git a/youtube_dl/extractor/ustream.py b/youtube_dl/extractor/ustream.py
index 9fdeb064d2..7243d0eca7 100644
--- a/youtube_dl/extractor/ustream.py
+++ b/youtube_dl/extractor/ustream.py
@@ -1,6 +1,5 @@
 from __future__ import unicode_literals
 
-import json
 import re
 
 from .common import InfoExtractor