diff --git a/src/NzbDrone.Core/Notifications/AlbumDownloadMessage.cs b/src/NzbDrone.Core/Notifications/AlbumDownloadMessage.cs
index 4cd26be55..f0bd9a323 100644
--- a/src/NzbDrone.Core/Notifications/AlbumDownloadMessage.cs
+++ b/src/NzbDrone.Core/Notifications/AlbumDownloadMessage.cs
@@ -11,8 +11,8 @@ namespace NzbDrone.Core.Notifications
         public Artist Artist { get; set; }
         public Album Album { get; set; }
         public AlbumRelease Release { get; set; }
-        public List<TrackFile> TrackFiles { get; set; }
-        public List<TrackFile> OldFiles { get; set; }
+        public List<TrackFile> TrackFiles { get; set; } = new ();
+        public List<TrackFile> OldFiles { get; set; } = new ();
         public DownloadClientItemClientInfo DownloadClientInfo { get; set; }
         public string DownloadId { get; set; }