diff --git a/plugins/dynamix/include/DefaultPageLayout.php b/plugins/dynamix/include/DefaultPageLayout.php
index bca8ab499..1b5b5dc19 100644
--- a/plugins/dynamix/include/DefaultPageLayout.php
+++ b/plugins/dynamix/include/DefaultPageLayout.php
@@ -11,7 +11,7 @@
  */
 ?>
 <?
-$display['font'] = $_COOKIE['fontSize'];
+$display['font'] = $_COOKIE['fontSize'] ?? $display['font'];
 $theme   = $display['theme'];
 $header  = $display['header'];
 $backgnd = $display['background'];