diff --git a/Duplicati/Library/Main/Operation/Backup/ProgressHandler.cs b/Duplicati/Library/Main/Operation/Backup/ProgressHandler.cs
index 6f8d8608d..ec75ffde1 100644
--- a/Duplicati/Library/Main/Operation/Backup/ProgressHandler.cs
+++ b/Duplicati/Library/Main/Operation/Backup/ProgressHandler.cs
@@ -67,7 +67,7 @@ namespace Duplicati.Library.Main.Operation.Backup
                             }
 
                             processedFileCount += 1;
-                            processedFileSize += 1;
+                            processedFileSize += t.Length;
 
                             stat.OperationProgressUpdater.UpdatefilesProcessed(processedFileCount, processedFileSize);
                             filesStarted.Remove(t.Filepath);