diff --git a/site/models/customer.php b/site/models/customer.php
index a01f8ba..675b753 100644
--- a/site/models/customer.php
+++ b/site/models/customer.php
@@ -330,13 +330,15 @@ class Customer extends AppModel {
     }
 
     // Remove any contacts which are already destination customer contacts
-    $contacts = array_diff($contacts, array_keys($dst_contacts));
+    $new_contacts = array_diff($contacts, array_keys($dst_contacts));
+    $all_contacts = array_merge($new_contacts, array_keys($dst_contacts));
+    $this->pr(17, compact('new_contacts', 'all_contacts'));
 
     // For now, we'll assume the operation will succeed.
     $ret = true;
 
     // Add each desired source customer contact to the destination customer
-    foreach ($contacts AS $contact_id) {
+    foreach ($new_contacts AS $contact_id) {
       $CM = new ContactsCustomer();
       if (!$CM->save(array('customer_id' => $dst_id)
 		     + $src_contacts[$contact_id], false)) {
@@ -372,7 +374,7 @@ class Customer extends AppModel {
     $this->delete($src_id);
 
     // Delete all the orphaned customers
-    foreach (array_diff(array_keys($src_contacts), $contacts) AS $contact_id) {
+    foreach (array_diff(array_keys($src_contacts), $all_contacts) AS $contact_id) {
       // Delete un-used or duplicate contacts
       // REVISIT <AP> 20100702:
       //   Not sure if we really want to do this.