diff --git a/app/controllers/AuthController.php b/app/controllers/AuthController.php
index 310e9de..012185b 100644
--- a/app/controllers/AuthController.php
+++ b/app/controllers/AuthController.php
@@ -83,7 +83,7 @@ class AuthController extends ControllerBase
 
                     if ($result === false) {
 
-                        if (User::findFirstByUsernameOrEmail($data->getEmail())) {
+                        if (User::findFirstByEmail($data->getEmail())) {
                             $this->flash->error('The email address is already in use.');
                             $this->response->redirect('/login');
                             return;