diff --git a/songbook-makeindex.py b/songbook-makeindex.py
index ab001b1b..ce9dd2b7 100755
--- a/songbook-makeindex.py
+++ b/songbook-makeindex.py
@@ -1,5 +1,5 @@
 #!/usr/bin/python
-# 
+# -*- coding: utf-8 -*-
 # Generate indexes files for the Crep's chordbook compilation. This is
 # a replacement for the original makeindex program written in C that
 # produces an index file (.sbx) from a file generated by the latex