diff --git a/app/helpers/issues_helper.rb b/app/helpers/issues_helper.rb
index 5e7f7c18c..315a86340 100644
--- a/app/helpers/issues_helper.rb
+++ b/app/helpers/issues_helper.rb
@@ -73,7 +73,7 @@ module IssuesHelper
     ancestors.each do |ancestor|
       s << '<div>' + content_tag('p', link_to_issue(ancestor, :project => (issue.project_id != ancestor.project_id)))
     end
-    s << '<div>'
+    s << '<div style="word-wrap: break-word; word-break: normal;">'
     subject = h(issue.subject)
     if issue.is_private?
       subject = content_tag('span', l(:field_is_private), :class => 'private') + ' ' + subject