diff --git a/IPython/core/tests/nonascii.py b/IPython/core/tests/nonascii.py
index 8f88c3e..17ff7d3 100644
--- a/IPython/core/tests/nonascii.py
+++ b/IPython/core/tests/nonascii.py
@@ -1,4 +1,4 @@
-# encoding: iso-8859-5
+# coding: iso-8859-5
 # (Unlikely to be the default encoding for most testers.)
 # ±¶яабвгдежзийклмноп <- Cyrillic characters
 from __future__ import unicode_literals