diff --git a/components/Notification/Notification.php b/components/Notification/Notification.php
index 12dd805aae..0e83cfa496 100644
--- a/components/Notification/Notification.php
+++ b/components/Notification/Notification.php
@@ -81,6 +81,9 @@ class Notification extends Component
     {
         // Ensure targets are all actor objects and unique
         $effective_targets = [];
+        foreach ($sender->getSubscribers() as $subscriber) {
+            $effective_targets[$subscriber->getId()] = $subscriber;
+        }
         foreach ($targets as $target) {
             if (\is_int($target)) {
                 $target_id     = $target;