diff --git a/mailchimp.module b/mailchimp.module
index 85ac2b9..1929a60 100644
--- a/mailchimp.module
+++ b/mailchimp.module
@@ -1282,6 +1282,7 @@ function mailchimp_insert_drupal_form_tag($mergevar) {
   $input = array(
     '#title' => t('@mergevar', array('@mergevar' => $mergevar['name'])),
     '#weight' => $mergevar['order'],
+    '#description' => $mergevar['helptext'],
     '#required' => $mergevar['req'],
     '#default_value' => $mergevar['default'],
   );