diff --git a/plugins/notification/ios/Sources/NotificationPlugin.swift b/plugins/notification/ios/Sources/NotificationPlugin.swift
index 290197a0..217c999d 100644
--- a/plugins/notification/ios/Sources/NotificationPlugin.swift
+++ b/plugins/notification/ios/Sources/NotificationPlugin.swift
@@ -61,7 +61,7 @@ func showNotification(invoke: Invoke, notification: JSObject)
 }
 
 class NotificationPlugin: Plugin {
-  var notificationHandler = NotificationHandler()
+  let notificationHandler = NotificationHandler()
   let notificationManager = NotificationManager()
 
   override init() {