diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
index f71e0b7..43647dc 100644
--- a/src/DependencyInjection/Configuration.php
+++ b/src/DependencyInjection/Configuration.php
@@ -32,7 +32,6 @@ final class Configuration implements ConfigurationInterface
                             ->booleanNode('enabled')
                                 ->info('Enable/disable cache')
                                 ->defaultTrue()
-                                ->cannotBeEmpty()
                                 ->isRequired()
                             ->end()
                             ->scalarNode('ttl')