diff --git a/index.php b/index.php
index 3ace3f6e..637e321c 100644
--- a/index.php
+++ b/index.php
@@ -37,9 +37,30 @@ spl_autoload_register(
     }
 );
 
+/**
+ * Config
+ */
+$configPath = __DIR__ . '/' . 'src/config/config.php';
+
+if (file_exists($configPath)) {
+    require $configPath;
+}
+
 /**
  * Session
  */
+$cookie_domain = $_SERVER['HTTP_HOST'];
+
+if (defined('CHANNELS') && is_iterable(CHANNELS)) {
+    foreach (CHANNELS as $channel) {
+        if ('stable' === $channel['branch']) {
+            $cookie_domain = $channel['host'];
+
+            break;
+        }
+    }
+}
+
 $sessionLifetime = 2592000 * 12; // 12 Months
 
 session_start(
@@ -47,7 +68,7 @@ session_start(
         'name'            => 'wishthis',
         'cookie_lifetime' => $sessionLifetime,
         'cookie_path'     => '/',
-        'cookie_domain'   => '.wishthis.online',
+        'cookie_domain'   => '.' . $cookie_domain,
     )
 );
 
@@ -56,15 +77,6 @@ if (!isset($_SESSION['user']) || is_array($_SESSION['user'])) {
     $_SESSION['user'] = new User();
 }
 
-/**
- * Config
- */
-$configPath = __DIR__ . '/' . 'src/config/config.php';
-
-if (file_exists($configPath)) {
-    require $configPath;
-}
-
 /**
  * Database
  */