diff --git a/phpBB/config/default/container/services.yml b/phpBB/config/default/container/services.yml
index 9bbcdcbd57..49d2f21c43 100644
--- a/phpBB/config/default/container/services.yml
+++ b/phpBB/config/default/container/services.yml
@@ -1,4 +1,5 @@
 imports:
+    - { resource: services_attachment.yml }
     - { resource: services_auth.yml }
     - { resource: services_avatar.yml }
     - { resource: services_captcha.yml }