diff --git a/src/duplicacy_chunkdownloader.go b/src/duplicacy_chunkdownloader.go
index 689206c..a2eac77 100644
--- a/src/duplicacy_chunkdownloader.go
+++ b/src/duplicacy_chunkdownloader.go
@@ -353,7 +353,7 @@ func (downloader *ChunkDownloader) Download(threadIndex int, task ChunkDownloadT
         }
     }
 
-    if downloader.showStatistics || IsTracing() {
+    if (downloader.showStatistics || IsTracing()) && downloader.totalFileSize > 0 {
 
         atomic.AddInt64(&downloader.downloadedFileSize, int64(chunk.GetLength()))
         downloadFileSize := atomic.LoadInt64(&downloader.downloadedFileSize)