diff --git a/library/Businessprocess/Web/Form/QuickBaseForm.php b/library/Businessprocess/Web/Form/QuickBaseForm.php
index d8d80a0..a0246ee 100644
--- a/library/Businessprocess/Web/Form/QuickBaseForm.php
+++ b/library/Businessprocess/Web/Form/QuickBaseForm.php
@@ -4,9 +4,10 @@ namespace Icinga\Module\Businessprocess\Web\Form;
 
 use Icinga\Application\Icinga;
 use Icinga\Application\Modules\Module;
+use Icinga\Module\Businessprocess\Html\Renderable;
 use Zend_Form;
 
-abstract class QuickBaseForm extends Zend_Form
+abstract class QuickBaseForm extends Zend_Form implements Renderable
 {
     /**
      * The Icinga module this form belongs to. Usually only set if the