diff --git a/doc/demuxers.texi b/doc/demuxers.texi
index 06ab152cc7..1c9575b2e8 100644
--- a/doc/demuxers.texi
+++ b/doc/demuxers.texi
@@ -187,7 +187,7 @@ Codec for the stream.
 @item @code{stream_extradata @var{hex_string}}
 Extradata for the string, encoded in hexadecimal.
 
-@item @code{cahpter @var{id} @var{start} @var{end}}
+@item @code{chapter @var{id} @var{start} @var{end}}
 Add a chapter. @var{id} is an unique identifier, possibly small and
 consecutive.