diff --git a/Jellyfin.Plugin.Webhook/Notifiers/AuthenticationFailureNotifier.cs b/Jellyfin.Plugin.Webhook/Notifiers/AuthenticationFailureNotifier.cs
index 50e2840..ae640ea 100644
--- a/Jellyfin.Plugin.Webhook/Notifiers/AuthenticationFailureNotifier.cs
+++ b/Jellyfin.Plugin.Webhook/Notifiers/AuthenticationFailureNotifier.cs
@@ -46,6 +46,7 @@ public async Task OnEvent(AuthenticationRequestEventArgs eventArgs)
         dataObject[nameof(eventArgs.DeviceId)] = eventArgs.DeviceId ?? string.Empty;
         dataObject[nameof(eventArgs.DeviceName)] = eventArgs.DeviceName ?? string.Empty;
         dataObject[nameof(eventArgs.RemoteEndPoint)] = eventArgs.RemoteEndPoint ?? string.Empty;
+        dataObject["NotificationUsername"] = eventArgs.Username ?? string.Empty;
 
         await _webhookSender.SendNotification(NotificationType.AuthenticationFailure, dataObject)
             .ConfigureAwait(false);