diff --git a/background.html b/background.html
index 7f865ca2..b099a0e3 100644
--- a/background.html
+++ b/background.html
@@ -195,7 +195,7 @@
   <script type='text/x-tmpl-mustache' id='conversation-preview'>
       {{> avatar }}
       <div class='contact-details'>
-          <span class='last-timestamp' data-timestamp={{ last_message_timestamp }} dir='auto'> </span>
+          <span class='last-timestamp' data-timestamp='{{ last_message_timestamp }}' dir='auto' > </span>
           {{> contact_name_and_number }}
           {{ #unreadCount }}
             <span class='unread-count'>{{ unreadCount }}</span>