diff --git a/Source/Python/utils/mp4-hls.py b/Source/Python/utils/mp4-hls.py
index fb8027868..d32a7b01c 100644
--- a/Source/Python/utils/mp4-hls.py
+++ b/Source/Python/utils/mp4-hls.py
@@ -456,6 +456,10 @@ def OutputHls(options, media_sources):
             if len(subtitles_files):
                 ext_x_stream_inf += ',SUBTITLES="subtitles"'
 
+            # captions info
+            if media['source'].spec.get('+captions'):
+                ext_x_stream_inf += ',CLOSED-CAPTIONS=' + media['source'].spec.get('+captions')
+
             master_playlist.write(ext_x_stream_inf+'\r\n')
             master_playlist.write(media['dir']+'/stream.m3u8\r\n')