diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index f26e7b9d8..2ba14bef4 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -80,7 +80,7 @@ module ProjectsHelper
       s << ("</li></ul>\n" * ancestors.size)
       @project = original_project
     end
-    s
+    s.html_safe
   end
 
   # Returns a set of options for a select field, grouped by project.