diff --git a/rawilum/Shortcodes.php b/rawilum/Shortcodes.php
index 0898c2b7..f75485e2 100644
--- a/rawilum/Shortcodes.php
+++ b/rawilum/Shortcodes.php
@@ -96,7 +96,7 @@ class Shortcodes
         $shortcodes = implode('|', array_map('preg_quote', array_keys(static::$shortcode_tags)));
         $pattern    = "/(.?)\{([$shortcodes]+)(.*?)(\/)?\}(?(4)|(?:(.+?)\{\/\s*\\2\s*\}))?(.?)/s";
 
-        return preg_replace_callback($pattern, array($this, '_handle'), $content);
+        return preg_replace_callback($pattern, 'static::_handle', $content);
     }
 
     /**
diff --git a/rawilum/boot/shortcodes.php b/rawilum/boot/shortcodes.php
index f0dc7527..4fd5de1d 100644
--- a/rawilum/boot/shortcodes.php
+++ b/rawilum/boot/shortcodes.php
@@ -1,5 +1,7 @@
 <?php namespace Rawilum;
 
+use Url;
+
 /**
  * @package Rawilum
  *