diff --git a/core/modules/update/update.services.yml b/core/modules/update/update.services.yml
index 53e45b11a95c90dcd04ab86bc8a13c9a08dd8330..4d5e87e877cceec239a6cba7ceee9dfaa37e1afb 100644
--- a/core/modules/update/update.services.yml
+++ b/core/modules/update/update.services.yml
@@ -25,3 +25,5 @@ services:
   update.route_subscriber:
     class: Drupal\update\Routing\UpdateRouteSubscriber
     arguments: ['@settings']
+    tags:
+      - { name: event_subscriber }