diff --git a/core-bundle/contao/dca/tl_form_field.php b/core-bundle/contao/dca/tl_form_field.php
index <HASH>..<HASH> 100644
--- a/core-bundle/contao/dca/tl_form_field.php
+++ b/core-bundle/contao/dca/tl_form_field.php
@@ -205,7 +205,7 @@ $GLOBALS['TL_DCA']['tl_form_field'] = array
 			'exclude'                 => true,
 			'search'                  => true,
 			'inputType'               => 'textarea',
-			'eval'                    => array('mandatory'=>true, 'allowHtml'=>true),
+			'eval'                    => array('mandatory'=>true, 'allowHtml'=>true, 'class'=>'monospace', 'rte'=>'ace|html'),
 			'sql'                     => "text NULL"
 		),
 		'options' => array
[Core] Load the code editor when editing the HTML form field