diff --git a/lib/SimpleSAML/Session.php b/lib/SimpleSAML/Session.php
index f7bb281fb39fda37305476d8e132b2c0f03b5969..a6932766739691bea6efdec1e317bb80b7ba3209 100644
--- a/lib/SimpleSAML/Session.php
+++ b/lib/SimpleSAML/Session.php
@@ -755,6 +755,12 @@ class SimpleSAML_Session implements Serializable
     {
         $sessionHandler = \SimpleSAML\SessionHandler::getSessionHandler();
 
+        if (is_array($params) && !empty($params)) {
+            $params = array_merge($sessionHandler->getCookieParams(), $params);
+        } else {
+            $params = $sessionHandler->getCookieParams();
+        }
+
         if ($this->sessionId !== null) {
             $sessionHandler->setCookie($sessionHandler->getSessionCookieName(), $this->sessionId, $params);
         }