diff --git a/doc/filters.texi b/doc/filters.texi
index 3fce874f5f..9f7b976d2a 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -1338,7 +1338,7 @@ the input.
 
 To fix a 5.1 WAV improperly encoded in AAC's native channel order
 @example
-ffmpeg -i in.wav -filter 'channelmap=1|2|0|5|3|4:channel_layout=5.1' out.wav
+ffmpeg -i in.wav -filter 'channelmap=1|2|0|5|3|4:5.1' out.wav
 @end example
 
 @section channelsplit