diff --git a/purchase_usability/__init__.py b/purchase_usability/__init__.py
index 73afd28..14a3e7a 100644
--- a/purchase_usability/__init__.py
+++ b/purchase_usability/__init__.py
@@ -1,4 +1,4 @@
-# -*- encoding: utf-8 -*-
+# -*- coding: utf-8 -*-
 
 from . import purchase
 from . import product