diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 875e0046e..90ab9ba3e 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -17,8 +17,8 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('chill_amli_family_members');
+        $treeBuilder = new TreeBuilder('chill_amli_family_members');
+        $rootNode = $treeBuilder->getRootNode('chill_amli_family_members');
 
         $rootNode
             ->children()