diff --git a/youtube_dl/extractor/pbs.py b/youtube_dl/extractor/pbs.py
index 7444b7b5b..8d847e7fe 100644
--- a/youtube_dl/extractor/pbs.py
+++ b/youtube_dl/extractor/pbs.py
@@ -1,7 +1,6 @@
 from __future__ import unicode_literals
 
 import re
-import json
 
 from .common import InfoExtractor