diff --git a/mozilla/extensions/irc/locales/en-US/chrome/pref-irc.dtd b/mozilla/extensions/irc/locales/en-US/chrome/pref-irc.dtd
index f05e15f3947..90172460c65 100644
--- a/mozilla/extensions/irc/locales/en-US/chrome/pref-irc.dtd
+++ b/mozilla/extensions/irc/locales/en-US/chrome/pref-irc.dtd
@@ -1,6 +1,6 @@
 <!ENTITY pref-irc.window.title "ChatZilla">
 
 <!ENTITY pref-irc.open.title     "ChatZilla's Preferences">
-<!ENTITY pref-irc.open.desc      "ChatZilla's preferences are too extensive to fit into this preference window so, instead, you can open it's preferences window from here.">
+<!ENTITY pref-irc.open.desc      "ChatZilla's preferences are too extensive to fit into this preference window so, instead, you can open its preferences window from here.">
 <!ENTITY pref-irc.open.label     "Open ChatZilla's Preferences">
 <!ENTITY pref-irc.open.accesskey "O">