diff --git a/DependencyInjection/Factory/AwsS3AdapterFactory.php b/DependencyInjection/Factory/AwsS3AdapterFactory.php
index c2ad8aa..bf50d0e 100644
--- a/DependencyInjection/Factory/AwsS3AdapterFactory.php
+++ b/DependencyInjection/Factory/AwsS3AdapterFactory.php
@@ -44,9 +44,8 @@ class AwsS3AdapterFactory implements AdapterFactoryInterface
                     ->addDefaultsIfNotSet()
                     ->children()
                         ->scalarNode('directory')->defaultValue('')->end()
-                        ->booleanNode('create')
-                            ->defaultFalse()
-                        ->end()
+                        ->booleanNode('create')->defaultFalse()->end()
+                        ->scalarNode('acl')->defaultValue('private')->end()
                     ->end()
                 ->end()
             ->end()