diff --git a/views/warningbar.php b/views/warningbar.php
index e4b9333..3638823 100644
--- a/views/warningbar.php
+++ b/views/warningbar.php
@@ -79,7 +79,7 @@ echo html_writer::tag('style',
                 clearInterval(this.timer);
                 missing = 0;
                 <?php
-                if (is_siteadmin()) {
+                if (!is_siteadmin()) {
                     echo 'location.href = "' . (new \moodle_url('/auth/outage/info.php')) . '";';
                 }
                 ?>