diff --git a/_admin.php b/_admin.php
index cf7f08a..88638c9 100644
--- a/_admin.php
+++ b/_admin.php
@@ -14,32 +14,33 @@ if (!defined('DC_CONTEXT_ADMIN')) {
     return;
 }
 
-dcCore::app()->addBehavior('adminBlogPreferencesFormV2', function ($blog_settings) {
-    $exists = [];
-    $path   = path::fullFromRoot((string) $blog_settings->get('system')->get('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.' . $ext);
+dcCore::app()->addBehaviors([
+    'adminBlogPreferencesFormV2' => function ($blog_settings) {
+        $exists = [];
+        $path   = path::fullFromRoot((string) $blog_settings->get('system')->get('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) $blog_settings->get('system')->get('simply_favicon')) .
-    __('Enable "Simply favicon" extension') . '</label></p>' .
-    '<p class="form-note">' .
-    __("You must place an image called favicon.png or .jpg or .ico into your blog's public directory.") .
-    '</p></div><div class="col">' .
-    (
-        empty($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) {
-    $blog_settings->get('system')->put('simply_favicon', !empty($_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) $blog_settings->get('system')->get('simply_favicon')) .
+        sprintf(__('Enable "%s" extension'), __('Simply favicon')) . '</label></p>' .
+        '<p class="form-note">' .
+        __("You must place an image called favicon.png or .jpg or .ico into your blog's public directory.") .
+        '</p></div><div class="col">' .
+        (
+            empty($exists) ?
+            '<p>' . __('There are no favicon in blog public directory') . '</p>' :
+            '<p>' . __('Current favicons:') . '</p><ul class="nice">' . implode($exists) . '</ul>'
+        ) .
+        '</div></div><br class="clear" /></div>';
+    },
+    'adminBeforeBlogSettingsUpdate' => function ($blog_settings) {
+        $blog_settings->get('system')->put('simply_favicon', !empty($_POST['simply_favicon']));
+    },
+]);