diff --git a/composer.json b/composer.json
index f629a3ee..10e3c7fd 100644
--- a/composer.json
+++ b/composer.json
@@ -29,6 +29,7 @@
     },
     "require": {
         "php": ">=7.2",
+        "winter/wn-backend-module": ">=1.2.8",
         "composer/installers": "~1.0"
     },
     "replace": {
diff --git a/controllers/locales/_create_form.htm b/controllers/locales/_create_form.php
similarity index 100%
rename from controllers/locales/_create_form.htm
rename to controllers/locales/_create_form.php
diff --git a/controllers/locales/_hint.htm b/controllers/locales/_hint.php
similarity index 100%
rename from controllers/locales/_hint.htm
rename to controllers/locales/_hint.php
diff --git a/controllers/locales/_list_toolbar.htm b/controllers/locales/_list_toolbar.php
similarity index 100%
rename from controllers/locales/_list_toolbar.htm
rename to controllers/locales/_list_toolbar.php
diff --git a/controllers/locales/_reorder_toolbar.htm b/controllers/locales/_reorder_toolbar.htm
deleted file mode 100644
index c5d5517f..00000000
--- a/controllers/locales/_reorder_toolbar.htm
+++ /dev/null
@@ -1,7 +0,0 @@
-<div data-control="toolbar">
-    <a
-        href="<?= Backend::url('winter/translate/locales') ?>"
-        class="btn btn-primary oc-icon-caret-left">
-        <?= e(trans('backend::lang.form.return_to_list')) ?>
-    </a>
-</div>
\ No newline at end of file
diff --git a/controllers/locales/_update_form.htm b/controllers/locales/_update_form.php
similarity index 100%
rename from controllers/locales/_update_form.htm
rename to controllers/locales/_update_form.php
diff --git a/controllers/locales/config_list.yaml b/controllers/locales/config_list.yaml
index d57a87bc..63994ce6 100644
--- a/controllers/locales/config_list.yaml
+++ b/controllers/locales/config_list.yaml
@@ -9,7 +9,7 @@ list: ~/plugins/winter/translate/models/locale/columns.yaml
 modelClass: Winter\Translate\Models\Locale
 
 # List Title
-title: winter.translate::lang.locale.title
+title: winter.translate::lang.locale.label_plural
 
 # Link URL for each record
 # recordUrl: winter/translate/locale/update/:id
diff --git a/controllers/locales/index.htm b/controllers/locales/index.php
similarity index 100%
rename from controllers/locales/index.htm
rename to controllers/locales/index.php
diff --git a/controllers/locales/reorder.htm b/controllers/locales/reorder.htm
deleted file mode 100644
index 2fe905dc..00000000
--- a/controllers/locales/reorder.htm
+++ /dev/null
@@ -1,9 +0,0 @@
-<?php Block::put('breadcrumb') ?>
-<ul>
-    <li><a href="<?= Backend::url('system/settings') ?>"><?= e(trans('system::lang.settings.menu_label')) ?></a></li>
-    <li><a href="<?= Backend::url('winter/translate/locales') ?>"><?= e(trans('winter.translate::lang.locale.title')) ?></a></li>
-    <li><?= e(trans($this->pageTitle)) ?></li>
-</ul>
-<?php Block::endPut() ?>
-
-<?= $this->reorderRender() ?>
diff --git a/controllers/messages/_hint.htm b/controllers/messages/_hint.php
similarity index 100%
rename from controllers/messages/_hint.htm
rename to controllers/messages/_hint.php
diff --git a/controllers/messages/_messages.htm b/controllers/messages/_messages.php
similarity index 100%
rename from controllers/messages/_messages.htm
rename to controllers/messages/_messages.php
diff --git a/controllers/messages/_scan_messages_form.htm b/controllers/messages/_scan_messages_form.php
similarity index 100%
rename from controllers/messages/_scan_messages_form.htm
rename to controllers/messages/_scan_messages_form.php
diff --git a/controllers/messages/_table_headers.htm b/controllers/messages/_table_headers.php
similarity index 100%
rename from controllers/messages/_table_headers.htm
rename to controllers/messages/_table_headers.php
diff --git a/controllers/messages/_table_toolbar.htm b/controllers/messages/_table_toolbar.php
similarity index 100%
rename from controllers/messages/_table_toolbar.htm
rename to controllers/messages/_table_toolbar.php
diff --git a/controllers/messages/export.htm b/controllers/messages/export.htm
deleted file mode 100644
index 29b77b6e..00000000
--- a/controllers/messages/export.htm
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php Block::put('breadcrumb') ?>
-    <ul>
-        <li><a href="<?= Backend::url('system/settings') ?>"><?= e(trans('system::lang.settings.menu_label')) ?></a></li>
-        <li><a href="<?= Backend::url('winter/translate/messages') ?>"><?= e(trans('winter.translate::lang.messages.title')) ?></a></li>
-        <li><?= e(trans($this->pageTitle)) ?></li>
-    </ul>
-<?php Block::endPut() ?>
-
-<?= Form::open(['class' => 'layout']) ?>
-
-    <div class="layout-row">
-        <?= $this->exportRender() ?>
-    </div>
-
-    <div class="form-buttons">
-        <button
-            type="submit"
-            data-control="popup"
-            data-handler="onExportLoadForm"
-            data-keyboard="false"
-            class="btn btn-primary">
-            <?= e(trans('winter.translate::lang.messages.export_messages_link')) ?>
-        </button>
-    </div>
-
-<?= Form::close() ?>
diff --git a/controllers/messages/import.htm b/controllers/messages/import.htm
deleted file mode 100644
index 51002658..00000000
--- a/controllers/messages/import.htm
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php Block::put('breadcrumb') ?>
-    <ul>
-        <li><a href="<?= Backend::url('system/settings') ?>"><?= e(trans('system::lang.settings.menu_label')) ?></a></li>
-        <li><a href="<?= Backend::url('winter/translate/messages') ?>"><?= e(trans('winter.translate::lang.messages.title')) ?></a></li>
-        <li><?= e(trans($this->pageTitle)) ?></li>
-    </ul>
-<?php Block::endPut() ?>
-
-<?= Form::open(['class' => 'layout']) ?>
-
-    <div class="layout-row">
-        <?= $this->importRender() ?>
-    </div>
-
-    <div class="form-buttons">
-        <button
-            type="submit"
-            data-control="popup"
-            data-handler="onImportLoadForm"
-            data-keyboard="false"
-            class="btn btn-primary">
-            <?= e(trans('winter.translate::lang.messages.import_messages_link')) ?>
-        </button>
-    </div>
-
-<?= Form::close() ?>
diff --git a/controllers/messages/index.htm b/controllers/messages/index.php
similarity index 100%
rename from controllers/messages/index.htm
rename to controllers/messages/index.php
diff --git a/lang/en/lang.php b/lang/en/lang.php
index 47559855..0dc9c6dd 100755
--- a/lang/en/lang.php
+++ b/lang/en/lang.php
@@ -17,6 +17,8 @@
         'component_description' => 'Injects the language alternatives for page as hreflang elements'
     ],
     'locale' => [
+        'label' => 'Language',
+        'label_plural' => 'Languages',
         'title' => 'Manage languages',
         'update_title' => 'Update language',
         'create_title' => 'Create language',
diff --git a/lang/fr/lang.php b/lang/fr/lang.php
index c7e4e434..223f4345 100644
--- a/lang/fr/lang.php
+++ b/lang/fr/lang.php
@@ -17,6 +17,8 @@
         'component_description' => "Injecte les alternatives linguistiques pour la page en tant qu'éléments hreflang"
     ],
     'locale' => [
+        'label' => 'Langue',
+        'label_plural' => 'Langues',
         'title' => 'Gestion des langues',
         'update_title' => 'Mettre à jour la langue',
         'create_title' => 'Ajouter une langue',
diff --git a/tests/TranslatePluginTestCase.php b/tests/TranslatePluginTestCase.php
index c40012af..da5573b7 100644
--- a/tests/TranslatePluginTestCase.php
+++ b/tests/TranslatePluginTestCase.php
@@ -1,6 +1,6 @@
 <?php namespace Winter\Translate\Tests;
 
-if (class_exists('System\Tests\Bootstrap\PluginTestCase')) {
+if (class_exists('\System\Tests\Bootstrap\PluginTestCase')) {
     class BaseTestCase extends \System\Tests\Bootstrap\PluginTestCase
     {
     }