diff --git a/test/unit/lib/redmine/helpers/gantt_test.rb b/test/unit/lib/redmine/helpers/gantt_test.rb
index 61de69483..1720ff6aa 100644
--- a/test/unit/lib/redmine/helpers/gantt_test.rb
+++ b/test/unit/lib/redmine/helpers/gantt_test.rb
@@ -20,7 +20,7 @@
 require File.expand_path('../../../../../test_helper', __FILE__)
 
 class Redmine::Helpers::GanttHelperTest < Redmine::HelperTest
-  fixtures :projects, :trackers, :issue_statuses,
+  fixtures :projects, :trackers, :projects_trackers, :issue_statuses,
            :enumerations, :users, :issue_categories
 
   include ProjectsHelper