diff --git a/config/services.yaml b/config/services.yaml
index 41c18e3d..e3ae5a17 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -65,6 +65,7 @@ parameters:
             subscribers:
                 - 'App\Subscriber\AutoLabelFromContentSubscriber'
                 - 'App\Subscriber\AutoUpdateTitleWithLabelSubscriber'
+                - 'App\Subscriber\CloseDraftPRSubscriber'
                 - 'App\Subscriber\StatusChangeByCommentSubscriber'
                 - 'App\Subscriber\StatusChangeOnPushSubscriber'
                 - 'App\Subscriber\StatusChangeByReviewSubscriber'