diff --git a/cookbook/assetic/asset_management.rst b/cookbook/assetic/asset_management.rst
index 660ba8e902a..1ef686d6cba 100644
--- a/cookbook/assetic/asset_management.rst
+++ b/cookbook/assetic/asset_management.rst
@@ -337,6 +337,10 @@ the following change in your ``config_dev.yml`` file:
             'use_controller' => false,
         ));
 
+.. note::
+
+    You'll also have to remove the ``_assetic`` route in your ``app/config_dev.yml`` file.
+
 Next, since Symfony is no longer generating these assets for you, you'll
 need to dump them manually. To do so, run the following: