diff --git a/oml/pdict.py b/oml/pdict.py
index eac5cff..020d5a4 100644
--- a/oml/pdict.py
+++ b/oml/pdict.py
@@ -1,3 +1,6 @@
+# -*- coding: utf-8 -*-
+# vi:si:et:sw=4:sts=4:ts=4
+
 import os
 import json