diff --git a/modules/backend/views/access_denied.php b/modules/backend/views/access_denied.php
index e9d8e55ae..95c77da8f 100644
--- a/modules/backend/views/access_denied.php
+++ b/modules/backend/views/access_denied.php
@@ -1,15 +1,15 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="<?= App::getLocale() ?>">
     <head>
         <meta charset="utf-8">
         <title><?= Lang::get('backend::lang.page.access_denied.label') ?></title>
         <link href="<?= Url::to('/modules/system/assets/css/styles.css') ?>" rel="stylesheet">
     </head>
     <body>
-    <div class="container">
-        <h1><i class="icon-lock warning"></i> <?= Lang::get('backend::lang.page.access_denied.label') ?></h1>
-        <p class="lead"><?= Lang::get('backend::lang.page.access_denied.help') ?></p>
-        <a href="<?= Backend::url('/') ?>"><?= Lang::get('backend::lang.page.access_denied.cms_link') ?></a>
-    </div>
+        <div class="container">
+            <h1><i class="icon-lock warning"></i> <?= Lang::get('backend::lang.page.access_denied.label') ?></h1>
+            <p class="lead"><?= Lang::get('backend::lang.page.access_denied.help') ?></p>
+            <a href="<?= Backend::url('/') ?>"><?= Lang::get('backend::lang.page.access_denied.cms_link') ?></a>
+        </div>
     </body>
 </html>
diff --git a/modules/backend/views/no_database.php b/modules/backend/views/no_database.php
index 142ffbe43..3100d1ba7 100644
--- a/modules/backend/views/no_database.php
+++ b/modules/backend/views/no_database.php
@@ -1,15 +1,15 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="<?= App::getLocale() ?>">
     <head>
         <meta charset="utf-8">
         <title><?= Lang::get('backend::lang.page.no_database.label') ?></title>
         <link href="<?= Url::to('/modules/system/assets/css/styles.css') ?>" rel="stylesheet">
     </head>
     <body>
-    <div class="container">
-        <h1><i class="icon-database warning"></i> <?= Lang::get('backend::lang.page.no_database.label') ?></h1>
-        <p class="lead"><?= Lang::get('backend::lang.page.no_database.help') ?></p>
-        <a href="<?= Url::to('/') ?>"><?= Lang::get('backend::lang.page.no_database.cms_link') ?></a>
-    </div>
+        <div class="container">
+            <h1><i class="icon-database warning"></i> <?= Lang::get('backend::lang.page.no_database.label') ?></h1>
+            <p class="lead"><?= Lang::get('backend::lang.page.no_database.help') ?></p>
+            <a href="<?= Url::to('/') ?>"><?= Lang::get('backend::lang.page.no_database.cms_link') ?></a>
+        </div>
     </body>
 </html>
diff --git a/modules/cms/views/404.php b/modules/cms/views/404.php
index b68d826fb..2e8414ebb 100644
--- a/modules/cms/views/404.php
+++ b/modules/cms/views/404.php
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="<?= App::getLocale() ?>">
     <head>
         <meta charset="utf-8">
         <title><?= Lang::get('cms::lang.page.not_found.label') ?></title>
diff --git a/modules/cms/views/error.php b/modules/cms/views/error.php
index 16786125d..efd9b3e2c 100644
--- a/modules/cms/views/error.php
+++ b/modules/cms/views/error.php
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="<?= App::getLocale() ?>">
     <head>
         <meta charset="utf-8">
         <title><?= Lang::get('cms::lang.page.custom_error.label') ?></title>
