1 files changed, 1 insertions, 1 deletions
diff --git a/MediaBrowser.Api/Playback/Hls/VideoHlsService.cs b/MediaBrowser.Api/Playback/Hls/VideoHlsService.cs
index 5709ca15a..87b1c4248 100644
--- a/MediaBrowser.Api/Playback/Hls/VideoHlsService.cs
+++ b/MediaBrowser.Api/Playback/Hls/VideoHlsService.cs
@@ -87,7 +87,7 @@ namespace MediaBrowser.Api.Playback.Hls
             if (codec.Equals("copy", StringComparison.OrdinalIgnoreCase))
             {
                 // if h264_mp4toannexb is ever added, do not use it for live tv
-                if (state.VideoStream != null && IsH264(state.VideoStream) && !string.IsNullOrWhiteSpace(state.VideoStream.NalLengthSize))
+                if (state.VideoStream != null && IsH264(state.VideoStream) && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
                 {
                     Logger.Debug("Enabling h264_mp4toannexb due to nal_length_size of {0}", state.VideoStream.NalLengthSize);
                     args += " -bsf:v h264_mp4toannexb";