diff --git a/js/index.js b/js/index.js
index 50d9e97b1..42ee88260 100644
--- a/js/index.js
+++ b/js/index.js
@@ -35,7 +35,7 @@ export type FetchResult = {
 /**
  * An event emitted by PushNotificationIOS.
  */
-export type PushNotificationEventName = $Enum<{
+export type PushNotificationEventName = $Keys<{
   /**
    * Fired when a remote notification is received. The handler will be invoked
    * with an instance of `PushNotificationIOS`.