diff --git a/uc_ajax_cart/uc_ajax_cart.module b/uc_ajax_cart/uc_ajax_cart.module
index aaee8df..32ab7a0 100644
--- a/uc_ajax_cart/uc_ajax_cart.module
+++ b/uc_ajax_cart/uc_ajax_cart.module
@@ -165,7 +165,7 @@ function uc_ajax_cart_add_item( $data ) {
 
   $formValues = array( 'values' => $data );
 
-  drupal_execute($formID, $formValues, $product );
+  drupal_execute($data['form_id'], $formValues, $product );
   return ;
 }