diff --git a/README.md b/README.md
index 25d8647..d6509c9 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ composer require acpl/flarum-lscache:"*"
     RewriteEngine On
     RewriteCond %{REQUEST_METHOD} ^HEAD|GET$
     # Detection of logged-in user.
-    RewriteRule .* - [E="Cache-Vary:flarum_remember,flarum_lscache_vary"]
+    RewriteRule .* - [E="Cache-Vary:flarum_remember,flarum_lscache_vary,locale"]
     # If you have a non-default path to the admin panel, change "admin" to match.
     RewriteCond %{ORG_REQ_URI} !/admin
     # Enable private cache for admin panel. If it causes problems replace "private" with "no-cache".
diff --git a/src/Middleware/VaryCookieMiddleware.php b/src/Middleware/VaryCookieMiddleware.php
index 120569a..088376c 100644
--- a/src/Middleware/VaryCookieMiddleware.php
+++ b/src/Middleware/VaryCookieMiddleware.php
@@ -35,7 +35,7 @@ public function process(ServerRequestInterface $request, RequestHandlerInterface
 
         $response = $response->withHeader(
             LSCacheHeadersEnum::VARY,
-            "cookie={$this->cookie->getName(LSCache::VARY_COOKIE)},cookie={$this->cookie->getName('remember')}",
+            "cookie={$this->cookie->getName(LSCache::VARY_COOKIE)},cookie={$this->cookie->getName('remember')},cookie=locale",
         );
 
         $user = RequestUtil::getActor($request);