gantt tootip bug

diff --git a/app/helpers/issues_helper.rb b/app/helpers/issues_helper.rb
index 60798fe..ffe4ca5 100644
--- a/app/helpers/issues_helper.rb
+++ b/app/helpers/issues_helper.rb
@@ -35,11 +35,12 @@ module IssuesHelper
     @cached_label_assigned_to ||= l(:field_assigned_to)
     @cached_label_priority ||= l(:field_priority)

-    link_to_issue(issue) + "<br /><br />" +
-      "<strong>#{@cached_label_start_date}</strong>: #{format_date(issue.start_date)}<br />" +
-      "<strong>#{@cached_label_due_date}</strong>: #{format_date(issue.due_date)}<br />" +
-      "<strong>#{@cached_label_assigned_to}</strong>: #{issue.assigned_to}<br />" +
-      "<strong>#{@cached_label_priority}</strong>: #{issue.priority.name}"
+    [link_to_issue(issue),
+     "<br /><br />",
+     "<strong>#{@cached_label_start_date}</strong>: #{format_date(issue.start_date)}<br />",
+     "<strong>#{@cached_label_due_date}</strong>: #{format_date(issue.due_date)}<br />",
+     "<strong>#{@cached_label_assigned_to}</strong>: #{issue.assigned_to}<br />",
+     "<strong>#{@cached_label_priority}</strong>: #{issue.priority.name}"].join('')
   end

   def render_issue_subject_with_tree(issue)