diff --git a/rss.php b/rss.php
index bd46dde..cca3f58 100644
--- a/rss.php
+++ b/rss.php
@@ -41,9 +41,12 @@ require_once(KT_LIB_DIR .'/authentication/authenticationutil.inc.php');
 require_once(KT_DIR. '/plugins/rssplugin/KTrss.inc.php');
 
 // Workaround for mod_auth when running php cgi
-list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':' , base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
+if(!isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['HTTP_AUTHORIZATION'])){
+    list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':' , base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
+}
 
 // workaround to get http authentication working in cgi mode
+// * older workaround - doesn't seem to be working now *
 $altinfo = KTUtil::arrayGet( $_SERVER, 'kt_auth', KTUtil::arrayGet( $_SERVER, 'REDIRECT_kt_auth'));
 if ( !empty( $altinfo) && !isset( $_SERVER['PHP_AUTH_USER'])) {
     $val = $altinfo;