diff --git a/CRM/Utils/System/Drupal.php b/CRM/Utils/System/Drupal.php
index 44adea35fb24..089a793ebba9 100644
--- a/CRM/Utils/System/Drupal.php
+++ b/CRM/Utils/System/Drupal.php
@@ -72,9 +72,15 @@ function createUser(&$params, $mail) {
 
     $form_state['rebuild'] = FALSE;
     $form_state['programmed'] = TRUE;
+    $form_state['complete form'] = FALSE;
     $form_state['method'] = 'post';
     $form_state['build_info']['args'] = array();
-
+    /*
+    * if we want to submit this form more than once in a process (e.g. create more than one user)
+    * we must force it to validate each time for this form. Otherwise it will not validate
+    * subsequent submissions and the manner in which the password is passed in will be invalid
+    * */
+    $form_state['must_validate'] = TRUE;
     $config = CRM_Core_Config::singleton();
 
     // we also need to redirect b
@@ -83,7 +89,8 @@ function createUser(&$params, $mail) {
     $form = drupal_retrieve_form('user_register_form', $form_state);
     $form_state['process_input'] = 1;
     $form_state['submitted'] = 1;
-
+    $form['#array_parents'] = array();
+    $form['#tree'] = FALSE;
     drupal_process_form('user_register_form', $form, $form_state);
 
     $config->inCiviCRM = FALSE;