diff --git a/includes/commerce_mailchimp.admin.inc b/includes/commerce_mailchimp.admin.inc
index dbda41d..39f4a7e 100644
--- a/includes/commerce_mailchimp.admin.inc
+++ b/includes/commerce_mailchimp.admin.inc
@@ -36,7 +36,7 @@ function commerce_mailchimp_settings() {
     '#title' => t('Product Category'),
   );
   foreach (commerce_product_types() as $type => $product_type) {
-    $instances = field_info_instances('commerce_product', 'product');
+    $instances = field_info_instances('commerce_product', $type);
     $options = array('' => '- None -');
     foreach ($instances as $instance) {
       $field_info = field_info_field($instance['field_name']);