diff --git a/IPython/core/tests/test_logger.py b/IPython/core/tests/test_logger.py
index 7ac7661..4d61ff2 100644
--- a/IPython/core/tests/test_logger.py
+++ b/IPython/core/tests/test_logger.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 """Test IPython.core.logger"""
 
 import os.path