diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 84c2147bb..5bdd68cd4 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -18,8 +18,8 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('chill_custom_fields');
+        $treeBuilder = new TreeBuilder('chill_custom_fields');
+        $rootNode = $treeBuilder->getRootNode('chill_custom_fields');
         
         $classInfo = "The class which may receive custom fields";
         $nameInfo = "The name which will appears in the user interface. May be translatable";