diff --git a/skins/default/mail.css b/skins/default/mail.css
index fd094202f..ec4b0d975 100644
--- a/skins/default/mail.css
+++ b/skins/default/mail.css
@@ -832,6 +832,8 @@ body.messagelist
 #messagelist tbody tr td.subject a
 {
   cursor: default;
+  display: inline-block;
+  vertical-align: middle;
 }
 
 /* thread parent message with unread children */