diff --git a/src/N_m3u8DL-RE/DownloadManager/SimpleDownloadManager.cs b/src/N_m3u8DL-RE/DownloadManager/SimpleDownloadManager.cs
index c28bcdc..6b42ad5 100644
--- a/src/N_m3u8DL-RE/DownloadManager/SimpleDownloadManager.cs
+++ b/src/N_m3u8DL-RE/DownloadManager/SimpleDownloadManager.cs
@@ -87,7 +87,7 @@ namespace N_m3u8DL_RE.DownloadManager
                 Logger.WarnMarkUp($"[darkorange3_1]{ResString.autoBinaryMerge2}[/]");
             }
 
-            if (!DownloaderConfig.MyOptions.MuxAfterDone && mediainfos.Any(m => m.DolbyVison == true))
+            if (DownloaderConfig.MyOptions.MuxAfterDone && mediainfos.Any(m => m.DolbyVison == true))
             {
                 DownloaderConfig.MyOptions.MuxAfterDone = false;
                 Logger.WarnMarkUp($"[darkorange3_1]{ResString.autoBinaryMerge5}[/]");