diff --git a/src/NzbDrone.Core/Notifications/Webhook/WebhookBase.cs b/src/NzbDrone.Core/Notifications/Webhook/WebhookBase.cs
index f51d71fc69..2bacc3c678 100644
--- a/src/NzbDrone.Core/Notifications/Webhook/WebhookBase.cs
+++ b/src/NzbDrone.Core/Notifications/Webhook/WebhookBase.cs
@@ -99,9 +99,9 @@ protected WebhookMovieDeletePayload BuildOnMovieDelete(MovieDeleteMessage delete
                 DeletedFiles = deleteMessage.DeletedFiles
             };
 
-            if (deleteMessage.DeletedFiles && deleteMessage.Movie.MovieFile != null)
+            if (deleteMessage.DeletedFiles && deleteMessage.Movie.MovieFiles != null)
             {
-                payload.MovieFolderSize = deleteMessage.Movie.MovieFile.Size;
+                payload.MovieFolderSize = deleteMessage.Movie.MovieFiles.Value.Select(f => f.Size).Sum();
             }
 
             return payload;