diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
index 97dbf68..4ef43c5 100644
--- a/src/DependencyInjection/Configuration.php
+++ b/src/DependencyInjection/Configuration.php
@@ -23,7 +23,7 @@ public function getConfigTreeBuilder(): TreeBuilder
         $rootNode
             ->children()
                 ->enumNode('renderer')
-                    ->values(['binary', 'service'])
+                    ->values(['binary', 'service', 'mjml_php'])
                     ->defaultValue('binary')
                 ->end()
                 ->arrayNode('options')