diff --git a/libs/common/src/platform/notifications/unsupported-system-notifications.service.ts b/libs/common/src/platform/notifications/unsupported-system-notifications.service.ts
index 3877043c4ba..32748f9a599 100644
--- a/libs/common/src/platform/notifications/unsupported-system-notifications.service.ts
+++ b/libs/common/src/platform/notifications/unsupported-system-notifications.service.ts
@@ -15,7 +15,7 @@ export class UnsupportedSystemNotificationsService implements SystemNotification
     throw new Error("Create OS Notification unsupported.");
   }
 
-  clear(clearInfo: SystemNotificationClearInfo): undefined {
+  clear(clearInfo: SystemNotificationClearInfo): Promise<undefined> {
     throw new Error("Clear OS Notification unsupported.");
   }