diff --git a/Form/Type/CroppableImageType.php b/Form/Type/CroppableImageType.php
index bdb9fd1c..d92311af 100644
--- a/Form/Type/CroppableImageType.php
+++ b/Form/Type/CroppableImageType.php
@@ -152,6 +152,6 @@ public function buildView(FormView $view, FormInterface $form, array $options)
         }
 
         $view->vars['options'] = array('uploadConfig' => $uploadConfig, 'cropConfig' => $cropConfig, 'fieldImage' => $fieldImage);
-        $view->vars['attr'] = array('style' => 'opacity: 0;width: 0; max-width: 0; height: 0; max-height: 0;');
+        $view->vars['attr']['style'] = 'opacity: 0;width: 0; max-width: 0; height: 0; max-height: 0;';
     }
 }