diff --git a/src/Auth.php b/src/Auth.php
index 0c9013e..5d4d75a 100644
--- a/src/Auth.php
+++ b/src/Auth.php
@@ -15,7 +15,7 @@ use Delight\Db\PdoDsn;
 use Delight\Db\Throwable\Error;
 use Delight\Db\Throwable\IntegrityConstraintViolationException;
 
-require __DIR__.'/Exceptions.php';
+require_once __DIR__ . '/Exceptions.php';
 
 /** Component that provides all features and utilities for secure authentication of individual users */
 final class Auth extends UserManager {
diff --git a/src/UserManager.php b/src/UserManager.php
index bb00c2a..d174ef3 100644
--- a/src/UserManager.php
+++ b/src/UserManager.php
@@ -11,6 +11,8 @@ namespace Delight\Auth;
 use Delight\Db\PdoDatabase;
 use Delight\Db\PdoDsn;
 
+require_once __DIR__ . '/Exceptions.php';
+
 /** Abstract base class for components implementing user management */
 abstract class UserManager {