diff --git a/system/src/Grav/Common/Language/Language.php b/system/src/Grav/Common/Language/Language.php
index 73e30abba..1bd20810e 100644
--- a/system/src/Grav/Common/Language/Language.php
+++ b/system/src/Grav/Common/Language/Language.php
@@ -31,9 +31,9 @@ class Language
     protected $fallback_extensions = [];
     /** @var array */
     protected $page_extesions = [];
-    /** @var string */
+    /** @var string|null */
     protected $default;
-    /** @var string */
+    /** @var string|null */
     protected $active;
     /** @var array */
     protected $http_accept_language;