diff --git a/core/java/android/service/notification/INotificationListener.aidl b/core/java/android/service/notification/INotificationListener.aidl
index 44daeff76997d..2b7cb1db174a1 100644
--- a/core/java/android/service/notification/INotificationListener.aidl
+++ b/core/java/android/service/notification/INotificationListener.aidl
@@ -41,7 +41,7 @@ oneway interface INotificationListener
     void onListenerHintsChanged(int hints);
     void onInterruptionFilterChanged(int interruptionFilter);
 
-    // companion device managers only
+    // companion device managers and assistants only
     void onNotificationChannelModification(String pkgName, in UserHandle user, in NotificationChannel channel, int modificationType);
     void onNotificationChannelGroupModification(String pkgName, in UserHandle user, in NotificationChannelGroup group, int modificationType);
 
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 6843733eea9fe..669dfc7f95485 100755
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -10103,7 +10103,9 @@ public class NotificationManagerService extends SystemService {
                 }
 
                 BackgroundThread.getHandler().post(() -> {
-                    if (info.isSystem || hasCompanionDevice(info)) {
+                    if (info.isSystem
+                            || hasCompanionDevice(info)
+                            || mAssistants.isServiceTokenValidLocked(info.service)) {
                         notifyNotificationChannelChanged(
                                 info, pkg, user, channel, modificationType);
                     }