diff --git a/includes/session_check.php b/includes/session_check.php
index 2675ff1..930c516 100644
--- a/includes/session_check.php
+++ b/includes/session_check.php
@@ -24,7 +24,9 @@ function checkSession(): void
     validateSessionDomain();
 
     if (!isset($_SESSION['user_id'])) {
-        header('Location: /login.php');
+        $scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
+        $host = $_SERVER['HTTP_HOST'] ?? 'localhost';
+        header('Location: ' . $scheme . '://' . $host . '/login.php');
         exit;
     }
 }