diff --git a/app/javascript/mastodon/actions/notifications.js b/app/javascript/mastodon/actions/notifications.js
index 552def63b6dab6fca574e502eaa5cf85889ec9b1..cd03a1d784976dad217f576c205ef2222f9cb204 100644
--- a/app/javascript/mastodon/actions/notifications.js
+++ b/app/javascript/mastodon/actions/notifications.js
@@ -234,3 +234,7 @@ export const mountNotifications = () => ({
 export const unmountNotifications = () => ({
   type: NOTIFICATIONS_UNMOUNT,
 });
+
+export const markNotificationsAsRead = () => ({
+  type: NOTIFICATIONS_MARK_AS_READ,
+});