diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index d489f19e11f6dd4b46c5c30636089ccfa5861830..c6d838724313eab97a54775019ba4892f5b92fe7 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -67,7 +67,7 @@ services:
     irstea.plant_uml.namespaces.php:
         class: Irstea\PlantUmlBundle\Model\Namespace_\Php\RootNamespace
 
-    irstea.plant_uml.namespaces.php:
+    irstea.plant_uml.namespaces.flat:
         class: Irstea\PlantUmlBundle\Model\Namespace_\FlatNamespace
 
     irstea.plant_uml.namespaces.bundles: