diff --git a/mozilla/calendar/sunbird/base/content/applicationUtil.js b/mozilla/calendar/sunbird/base/content/applicationUtil.js
index ff45aa67421..dcffc5ebd56 100644
--- a/mozilla/calendar/sunbird/base/content/applicationUtil.js
+++ b/mozilla/calendar/sunbird/base/content/applicationUtil.js
@@ -80,7 +80,7 @@ function launchBrowser( UrlToGoTo )
        else if ("loadURI" in navWindow)
          navWindow.loadURI(UrlToGoTo);
        else
-         navWindow._content.location.href = UrlToGoTo;
+         navWindow.content.location.href = UrlToGoTo;
      }
      // if all else fails, open a new window 
      else {