diff --git a/doc/filters.texi b/doc/filters.texi
index 99e157d54c9500ccddca4d22d68bed6dbc4388da..2afc1d3b3a1eb093856b3eda24a43cea45926678 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -2112,9 +2112,6 @@ input sample aspect ratio
 @item dar
 input display aspect ratio, it is the same as (@var{iw} / @var{ih}) * @var{sar}
 
-@item sar
-input sample aspect ratio
-
 @item hsub, vsub
 horizontal and vertical chroma subsample values. For example for the
 pixel format "yuv422p" @var{hsub} is 2 and @var{vsub} is 1.