diff --git a/src/Assetic/Extension/Twig/AsseticFilterFunction.php b/src/Assetic/Extension/Twig/AsseticFilterFunction.php
index 763f51d26..2c2b13c3d 100644
--- a/src/Assetic/Extension/Twig/AsseticFilterFunction.php
+++ b/src/Assetic/Extension/Twig/AsseticFilterFunction.php
@@ -15,7 +15,7 @@ class AsseticFilterFunction extends \Twig_SimpleFunction
 {
     public function __construct($name, $options = array())
     {
-        parent::__construct($name, '\Assetic\Extension\Twig\AsseticFilterInvoker::invoke', array_merge($options, array(
+        parent::__construct($name, null, array_merge($options, array(
             'needs_environment' => false,
             'needs_context' => false,
             'node_class' => '\Assetic\Extension\Twig\AsseticFilterNode',