diff --git a/start.php b/start.php
index 65a78d4..31c215e 100644
--- a/start.php
+++ b/start.php
@@ -33,8 +33,13 @@
             }
             if (! $user)
             {
-                register_user($elgg_user['username'], $elgg_user['password'],
-                    $elgg_user['name'], $elgg_user['email']);
+                try {
+                    if (!register_user($elgg_user['username'], $elgg_user['password'],
+                        $elgg_user['name'], $elgg_user['email']))
+                            return 1;
+                } catch (RegistrationException $e) {
+                    return true;
+                }
                 $user = get_user_by_username($elgg_user['username']);
                 $user->ldapDN = $elgg_user['ldapDN'];
             }