diff --git a/mail/base/content/aboutDialog.css b/mail/base/content/aboutDialog.css
index b98f794cd2b..d4d5e5ca06b 100644
--- a/mail/base/content/aboutDialog.css
+++ b/mail/base/content/aboutDialog.css
@@ -35,7 +35,7 @@
 #copyright {
   color: #909090;
   margin-top: 0;
-  -moz-margin-end: 0;
+  -moz-margin-end: 20px;
   margin-bottom: 3px;
   -moz-margin-start: 20px;
 }