diff --git a/src/you_get/processor/ffmpeg.py b/src/you_get/processor/ffmpeg.py
index efc0a47280..4bbbd177db 100755
--- a/src/you_get/processor/ffmpeg.py
+++ b/src/you_get/processor/ffmpeg.py
@@ -175,7 +175,7 @@ def ffmpeg_concat_flv_to_mp4(files, output='output.mp4'):
     if FFMPEG == 'avconv':
         params += ['-c', 'copy']
     else:
-        params += ['-c', 'copy', '-absf', 'aac_adtstoasc']
+        params += ['-c', 'copy', '-bsf:a', 'aac_adtstoasc']
     params.extend(['--', output])
 
     if subprocess.call(params, stdin=STDIN) == 0:
@@ -229,7 +229,7 @@ def ffmpeg_concat_mp4_to_mp4(files, output='output.mp4'):
     if FFMPEG == 'avconv':
         params += ['-c', 'copy']
     else:
-        params += ['-c', 'copy', '-absf', 'aac_adtstoasc']
+        params += ['-c', 'copy', '-bsf:a', 'aac_adtstoasc']
     params.extend(['--', output])
 
     subprocess.check_call(params, stdin=STDIN)