diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index <HASH>..<HASH> 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -27,7 +27,7 @@ class Configuration implements ConfigurationInterface
                         ->children()
                             ->scalarNode('host')->defaultValue('127.0.0.1')->cannotBeEmpty()->end()
                             ->integerNode('port')->defaultValue(6379)->cannotBeEmpty()->end()
-                            ->integerNode('base')->defaultValue(null)->end()
+                            ->integerNode('base')->treatNullLike(0)->defaultValue(0)->end()
                         ->end()
                     ->end()
                 ->end()
accept null value for interger node base and treat it as 0 and change default value to 0