diff --git a/lib/open_project/reporting/engine.rb b/lib/open_project/reporting/engine.rb
index 28a6e61ca9..ee95c63ca5 100644
--- a/lib/open_project/reporting/engine.rb
+++ b/lib/open_project/reporting/engine.rb
@@ -45,7 +45,7 @@ module OpenProject::Reporting
     end
 
     #menu extensions
-    menu :top_menu, :cost_reports_global, {controller: 'cost_reports', action: 'index', project_id: nil},
+    menu :top_menu, :cost_reports_global, {controller: '/cost_reports', action: 'index', project_id: nil},
       caption: :cost_reports_title,
       if: Proc.new {
         ( User.current.allowed_to?(:view_time_entries, nil, global: true) ||