1 files changed, 1 insertions, 1 deletions
diff --git a/core/Session.php b/core/Session.php
index bed2df45bc..5b73ef961a 100644
--- a/core/Session.php
+++ b/core/Session.php
@@ -207,7 +207,7 @@ class Session extends Zend_Session
     {
         $headerStr = 'Set-Cookie: ' . rawurlencode($name) . '=' . rawurlencode($value);
         if ($expires) {
-            $headerStr .= '; expires=' . $expires;
+            $headerStr .= '; expires=' . gmdate('D, d-M-Y H:i:s', $expires) . ' GMT';
         }
         if ($path) {
             $headerStr .= '; path=' . $path;