diff --git a/modules/libpref/src/init/all.js b/modules/libpref/src/init/all.js
index 8ac01e4cfd6a..569f4fdb0b4c 100644
--- a/modules/libpref/src/init/all.js
+++ b/modules/libpref/src/init/all.js
@@ -28,7 +28,7 @@ pref("network.search.url","http://cgi.netscape.com/cgi-bin/url_search.cgi?search
 pref("keyword.URL", "http://keyword.netscape.com/keyword/");
 pref("keyword.enabled", true);
 pref("general.useragent.locale", "chrome://navigator/locale/navigator.properties");
-pref("general.useragent.misc", "rv:0.8.1+");
+pref("general.useragent.misc", "rv:0.9+");
 
 pref("general.startup.browser",             true);
 pref("general.startup.mail",                false);