diff --git a/skins/default/mail.css b/skins/default/mail.css
index 3ea4fec6c..4dfc20674 100644
--- a/skins/default/mail.css
+++ b/skins/default/mail.css
@@ -435,6 +435,7 @@
   padding-top: 2px;
   padding-bottom: 2px;
   text-decoration: none;
+  height: 15px;
 }
 
 #mailboxlist li.unread