diff --git a/doc/general.texi b/doc/general.texi
index c53e1bc7103ed1e9558a096921cefe046c9b4dd1..97a62bbe4970dda1657d46ad1023350a1552c01e 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -466,7 +466,7 @@ following image formats are supported:
 @item 8SVX audio             @tab     @tab  X
 @item AAC                    @tab  E  @tab  X
     @tab encoding supported through external library libfaac
-@item AC-3                   @tab  X  @tab  X
+@item AC-3                   @tab IX  @tab  X
 @item ADPCM 4X Movie         @tab     @tab  X
 @item ADPCM CDROM XA         @tab     @tab  X
 @item ADPCM Creative Technology @tab     @tab  X