diff --git a/FFMpegCore/FFMPEG/FFMpeg.cs b/FFMpegCore/FFMPEG/FFMpeg.cs
index c1d453c..3f6350a 100644
--- a/FFMpegCore/FFMPEG/FFMpeg.cs
+++ b/FFMpegCore/FFMPEG/FFMpeg.cs
@@ -151,6 +151,8 @@ public VideoInfo Convert(
             FFMpegHelper.ExtensionExceptionCheck(output, FileExtension.ForType(type));
             FFMpegHelper.ConversionSizeExceptionCheck(source);
 
+            _totalTime = source.Duration;
+
             var scale = VideoSize.Original == size ? 1 :
                 (double)source.Height / (int)size;
 
@@ -201,6 +203,8 @@ public VideoInfo Convert(
                     break;
             }
 
+            _totalTime = TimeSpan.MinValue;
+
             if (!RunProcess(container, output))
             {
                 throw new FFMpegException(FFMpegExceptionType.Conversion, $"The video could not be converted to {Enum.GetName(typeof(VideoType), type)}");