diff --git a/_admin.php b/_admin.php
index a37ced6..c8ffb2d 100644
--- a/_admin.php
+++ b/_admin.php
@@ -14,42 +14,32 @@ if (!defined('DC_CONTEXT_ADMIN')) {
     return;
 }
 
-dcCore::app()->addBehavior('adminBlogPreferencesFormV2', ['adminSimplyFavicon', 'adminBlogPreferencesForm']);
-dcCore::app()->addBehavior('adminBeforeBlogSettingsUpdate', ['adminSimplyFavicon', 'adminBeforeBlogSettingsUpdate']);
-
-class adminSimplyFavicon
-{
-    public static $extensions = ['ico', 'png', 'bmp', 'gif', 'jpg', 'mng'];
-
-    public static function adminBlogPreferencesForm($blog_settings)
-    {
-        $exists = [];
-        $path   = path::fullFromRoot((string) $blog_settings->system->public_path, DC_ROOT);
-        foreach (self::$extensions as $ext) {
-            if (file_exists($path . '/favicon.' . $ext)) {
-                $exists[] = sprintf('<li title="%s">%s</li>', $path . '/favicon.' . $ext, 'favicon.' . $ext);
-            }
+dcCore::app()->addBehavior('adminBlogPreferencesFormV2', function ($blog_settings) {
+    $exists = [];
+    $path   = path::fullFromRoot((string) $blog_settings->system->public_path, DC_ROOT);
+    foreach (['ico', 'png', 'bmp', 'gif', 'jpg', 'mng'] as $ext) {
+        if (file_exists($path . '/favicon.' . $ext)) {
+            $exists[] = sprintf('<li title="%s">%s</li>', $path . '/favicon.' . $ext, 'favicon.' . $ext);
         }
-
-        echo
-        '<div class="fieldset clear"><h4 id="simply_favicon_params">Favicon</h4>' .
-        '<div class="two-cols"><div class="col">' .
-        '<p><label class="classic">' .
-        form::checkbox('simply_favicon', '1', (bool) $blog_settings->system->simply_favicon) .
-        __('Enable "Simply favicon" extension') . '</label></p>' .
-        '<p class="form-note">' .
-        __("You must place an image called favicon.png or .jpg or .ico into your blog's public directory.") .
-        '</p></div><div class="col">' .
-        (
-            empty($exists) ?
-            '<p>' . __('There are no favicon in blog public directory') . '</p>' :
-            '<p>' . __('Current favicons:') . '</p><ul class="nice">' . implode($exists) . '</ul>'
-        ) .
-        '</div></div><br class="clear" /></div>';
     }
 
-    public static function adminBeforeBlogSettingsUpdate($blog_settings)
-    {
-        $blog_settings->system->put('simply_favicon', !empty($_POST['simply_favicon']));
-    }
-}
+    echo
+    '<div class="fieldset clear"><h4 id="simply_favicon_params">Favicon</h4>' .
+    '<div class="two-cols"><div class="col">' .
+    '<p><label class="classic">' .
+    form::checkbox('simply_favicon', '1', (bool) $blog_settings->system->simply_favicon) .
+    __('Enable "Simply favicon" extension') . '</label></p>' .
+    '<p class="form-note">' .
+    __("You must place an image called favicon.png or .jpg or .ico into your blog's public directory.") .
+    '</p></div><div class="col">' .
+    (
+        empty($exists) ?
+        '<p>' . __('There are no favicon in blog public directory') . '</p>' :
+        '<p>' . __('Current favicons:') . '</p><ul class="nice">' . implode($exists) . '</ul>'
+    ) .
+    '</div></div><br class="clear" /></div>';
+});
+
+dcCore::app()->addBehavior('adminBeforeBlogSettingsUpdate', function ($blog_settings) {
+    $blog_settings->system->put('simply_favicon', !empty($_POST['simply_favicon']));
+});