diff --git a/blackout/blackout.php b/blackout/blackout.php
index a4e3eb35..20369716 100644
--- a/blackout/blackout.php
+++ b/blackout/blackout.php
@@ -88,7 +88,7 @@ function blackout_redirect ($a, $b) {
     }
     if (( $date1 <= $now ) && ( $now <= $date2 )) {
         logger('redirecting user to blackout page');
-        System::externalRedirectTo($myurl);
+        System::externalRedirect($myurl);
     }
 }