diff --git a/core/modules/comment/src/Controller/CommentController.php b/core/modules/comment/src/Controller/CommentController.php
index 399c6ab..b2846be 100644
--- a/core/modules/comment/src/Controller/CommentController.php
+++ b/core/modules/comment/src/Controller/CommentController.php
@@ -132,7 +132,7 @@ public function commentPermalink(Request $request, CommentInterface $comment) {
       $redirect_request->query->set('page', $page);
       // Carry over the session to the subrequest.
       if ($session = $request->getSession()) {
-        $sub_request->setSession($session);
+        $redirect_request->setSession($session);
       }
       // @todo: Convert the pager to use the request object.
       $request->query->set('page', $page);