diff --git a/test/unit/calendar_test.rb b/test/unit/lib/redmine/helpers/calendar_test.rb
similarity index 96%
rename from test/unit/calendar_test.rb
rename to test/unit/lib/redmine/helpers/calendar_test.rb
index ac6a651e..83752344 100644
--- a/test/unit/calendar_test.rb
+++ b/test/unit/lib/redmine/helpers/calendar_test.rb
@@ -15,7 +15,7 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
-require File.expand_path('../../test_helper', __FILE__)
+require File.expand_path('../../../../../test_helper', __FILE__)
 
 class CalendarTest < ActiveSupport::TestCase