diff --git a/browser/locales/en-US/chrome/browser/browser.dtd b/browser/locales/en-US/chrome/browser/browser.dtd
index a84c94764f3..61159495d5b 100644
--- a/browser/locales/en-US/chrome/browser/browser.dtd
+++ b/browser/locales/en-US/chrome/browser/browser.dtd
@@ -304,7 +304,7 @@
 <!ENTITY textZoomResetCmd.label         "Normal">
 <!ENTITY textZoomResetCmd.accesskey     "N">
 <!ENTITY textSize.label                 "Text Size">
-<!ENTITY textSize.accesskey             "S">
+<!ENTITY textSize.accesskey             "z">
 
 <!ENTITY mailMenu.label                   "Mail &amp; News">
 <!ENTITY mailMenu.accesskey               "M">