diff --git a/youtube_dl/extractor/npo.py b/youtube_dl/extractor/npo.py
index 84b41443b..01eb54fc0 100644
--- a/youtube_dl/extractor/npo.py
+++ b/youtube_dl/extractor/npo.py
@@ -1,3 +1,4 @@
+# coding: utf-8
 from __future__ import unicode_literals
 
 import json