diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index 52aa7527..2c3df845 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -1,6 +1,6 @@
 parameters:
-    comur_image_type_class: "Comur\ImageBundle\Form\Type\CroppableImageType"
-    comur_gallery_type_class: "Comur\ImageBundle\Form\Type\CroppableGalleryType"
+    comur_image_type_class: 'Comur\ImageBundle\Form\Type\CroppableImageType'
+    comur_gallery_type_class: 'Comur\ImageBundle\Form\Type\CroppableGalleryType'
 services:
     comur_image_bundle.image_type:
         class: %comur_image_type_class%