diff --git a/product/ERP5/tests/testBPMCore.py b/product/ERP5/tests/testBPMCore.py
index 4242d815b091be940692f9d191f536d57c07c0fd..e31df132a359f4fa9a4e6177ca2d5b4234e77698 100644
--- a/product/ERP5/tests/testBPMCore.py
+++ b/product/ERP5/tests/testBPMCore.py
@@ -1,4 +1,4 @@
-# -*- coding: utf8 -*-
+# -*- coding: utf-8 -*-
 ##############################################################################
 # Copyright (c) 2009 Nexedi SA and Contributors. All Rights Reserved.
 #          Łukasz Nowak <luke@nexedi.com>