diff --git a/theme-settings.php b/theme-settings.php
index 61c11fd..96a60bb 100644
--- a/theme-settings.php
+++ b/theme-settings.php
@@ -108,7 +108,7 @@ function zen_form_system_theme_settings_alter(&$form, $form_state, $form_id = NU
                           'html5' => t('Add HTML5 shim JavaScript to add support to IE 6-8.'),
                           'meta' => t('Add meta tags to support responsive design on mobile devices.'),
                         ),
-    '#description'   => t('IE 6-8 require a JavaScript polyfill solution to add basic support of HTML5 and CSS3 media queries. If you prefer to use another polyfill solution, such as <a href="!link">Modernizr</a>, you can disable these options. Mobile devices require a few meta tags for responsive designs.', array('!link' => 'http://www.modernizr.com/')),
+    '#description'   => t('IE 6-8 require a JavaScript polyfill solution to add basic support of HTML5 and CSS3 media queries. If you prefer to use another polyfill solution, such as <a href="!link">Modernizr</a>, you can disable these options. Mobile devices require a few meta tags for responsive designs.<br />Please note: Respond.js will only function if <a href="@url">CSS agregation is enabled</a>.', array('!link' => 'http://www.modernizr.com/', '@url' => url('admin/config/development/performance'))),
   );
 
   $form['themedev'] = array(