diff --git a/test/unit/lib/redmine/field_format/field_format_test.rb b/test/unit/lib/redmine/field_format/field_format_test.rb
index 8c8136694..5250b9177 100644
--- a/test/unit/lib/redmine/field_format/field_format_test.rb
+++ b/test/unit/lib/redmine/field_format/field_format_test.rb
@@ -16,7 +16,6 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 require File.expand_path('../../../../../test_helper', __FILE__)
-require 'redmine/field_format'
 
 class Redmine::FieldFormatTest < ActionView::TestCase
   include ApplicationHelper