diff --git a/src/calibre/gui2/store/stores/wolnelektury_plugin.py b/src/calibre/gui2/store/stores/wolnelektury_plugin.py
index afed39784e..f3f7db5387 100644
--- a/src/calibre/gui2/store/stores/wolnelektury_plugin.py
+++ b/src/calibre/gui2/store/stores/wolnelektury_plugin.py
@@ -1,9 +1,10 @@
 # -*- coding: utf-8 -*-
 
 from __future__ import (unicode_literals, division, absolute_import, print_function)
+store_version = 1  # Needed for dynamic plugin loading
 
 __license__ = 'GPL 3'
-__copyright__ = '2012, Tomasz Długosz <tomek3d@gmail.com>'
+__copyright__ = '2012-2013, Tomasz Długosz <tomek3d@gmail.com>'
 __docformat__ = 'restructuredtext en'
 
 import re