diff --git a/app/models/user.rb b/app/models/user.rb
index 652168e9c00..1317decac55 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -299,8 +299,8 @@ class User < ActiveRecord::Base
     User.where("id = ? and seen_notification_id < ?", id, notification_id)
         .update_all ["seen_notification_id = ?", notification_id]
 
-    # mark all badge notifications read
-    Notification.where('user_id = ? AND NOT read AND notification_type = ?', id, Notification.types[:granted_badge])
+    # mark all "badge granted" and "invite accepted" notifications read
+    Notification.where('user_id = ? AND NOT read AND notification_type IN (?)', id, [Notification.types[:granted_badge], Notification.types[:invitee_accepted]])
         .update_all ["read = ?", true]
   end