diff --git a/src/notifications/schedulers/ETANotificationScheduler.ts b/src/notifications/schedulers/ETANotificationScheduler.ts
index bb820b9..943b74d 100644
--- a/src/notifications/schedulers/ETANotificationScheduler.ts
+++ b/src/notifications/schedulers/ETANotificationScheduler.ts
@@ -17,8 +17,9 @@ export class ETANotificationScheduler {
   ) {
     this.etaSubscriberCallback = this.etaSubscriberCallback.bind(this);
     this.sendEtaNotificationImmediately = this.sendEtaNotificationImmediately.bind(this);
-    this.etaSubscriberCallback = this.etaSubscriberCallback.bind(this);
     this.sendEtaNotificationImmediatelyIfSecondsRemainingBelowThreshold = this.sendEtaNotificationImmediatelyIfSecondsRemainingBelowThreshold.bind(this);
+
+    this.shuttleRepository.subscribeToEtaUpdates(this.etaSubscriberCallback);
   }
 
   private async sendEtaNotificationImmediately(notificationData: ScheduledNotification): Promise<boolean> {