diff --git a/suite/common/pref/pref-locales.xul b/suite/common/pref/pref-locales.xul
index e9b4e948418a..bda50ec1f7bd 100644
--- a/suite/common/pref/pref-locales.xul
+++ b/suite/common/pref/pref-locales.xul
@@ -61,7 +61,7 @@
 
     function SwitchContentPack()
     {
-      var oldContentPack = parent.hPrefWindow.getPref( "string", "general.useragent.contentlocale");
+      var oldContentPack = parent.hPrefWindow.getPref( "localizedstring", "general.useragent.contentlocale");
       var newContentPack;
 
       try {