diff --git a/pandas/io/tests/test_json/test_ujson.py b/pandas/io/tests/test_json/test_ujson.py
index 06ff5abf7cd13..4e9310d2d81ba 100644
--- a/pandas/io/tests/test_json/test_ujson.py
+++ b/pandas/io/tests/test_json/test_ujson.py
@@ -1,4 +1,6 @@
-from unittest import TestCase
+# -*- coding: utf-8 -*-
+
+from unittest import TestCase
 
 try:
     import json