diff --git a/system/src/Grav/Common/Language/Language.php b/system/src/Grav/Common/Language/Language.php
index f405b8f6f..f5e10caaa 100644
--- a/system/src/Grav/Common/Language/Language.php
+++ b/system/src/Grav/Common/Language/Language.php
@@ -249,26 +249,6 @@ class Language
 
         // if languages set
         if ($this->enabled()) {
-            // Check for explicit language override via ?lang= query parameter.
-            // This allows switching to any language (including the default language
-            // when include_default_lang is false and the URL has no language prefix).
-            $requestedLang = $_GET['lang'] ?? null;
-            if ($requestedLang) {
-                $requestedLang = strtolower($requestedLang);
-                if (in_array($requestedLang, $this->languages, true)) {
-                    $this->setActive($requestedLang);
-
-                    // Store in session.
-                    if (isset($this->grav['session']) && $this->grav['session']->isStarted()
-                        && $this->config->get('system.languages.session_store_active', true)
-                    ) {
-                        $this->grav['session']->active_language = $this->active;
-                    }
-
-                    return $uri;
-                }
-            }
-
             // Try setting language from prefix of URL (/en/blah/blah).
             if (preg_match($regex, $uri, $matches)) {
                 $this->lang_in_url = true;