--- donation.install.orig	2009-05-26 04:27:37.000000000 +0200
+++ donation.install	2009-09-25 15:25:23.112304600 +0200
@@ -48,3 +48,14 @@ function donation_schema() {
 function donation_uninstall() {
   drupal_uninstall_schema('donation');
 }
+
+/**
+* Implementation of hook_update().
+*/
+function donation_update_1() {
+  $ret = array();
+  db_add_field($ret, 'donations', 'nid', array('type' => 'int'));
+  db_add_field($ret, 'donations', 'fee', array('type' => 'float'));
+  db_add_field($ret, 'donations', 'usd_amount', array('type' => 'float'));
+  return $ret;
+}
\ No newline at end of file