--- a/wysiwyg.install (saved version)
+++ b/wysiwyg.install
@@ -30,6 +30,7 @@
         'description' => 'Configuration settings for the editor.',
         'type' => 'text',
         'size' => 'normal',
+        'serialize' => TRUE,
       ),
     ),
     'primary key' => array('format'),