diff --git a/StorageBundle/DependencyInjection/Configuration.php b/StorageBundle/DependencyInjection/Configuration.php
index 4b1e7e4..b643483 100644
--- a/StorageBundle/DependencyInjection/Configuration.php
+++ b/StorageBundle/DependencyInjection/Configuration.php
@@ -24,7 +24,7 @@ class Configuration implements ConfigurationInterface
                     ->scalarNode('bucket')->isRequired()->cannotBeEmpty()->end()
                     ->scalarNode('region')->isRequired()->cannotBeEmpty()->end()
                     ->scalarNode('endpoint')->isRequired()->cannotBeEmpty()->end()
-                    ->arrayNode('credentials')->isRequired()->cannotBeEmpty()
+                    ->arrayNode('credentials')
                         ->children()
                             ->scalarNode('key')->isRequired()->cannotBeEmpty()->end()
                             ->scalarNode('secret')->isRequired()->cannotBeEmpty()->end()