diff --git a/qemu-doc.texi b/qemu-doc.texi
index 6796aeb..9b9df33 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -223,10 +223,16 @@
 Boot on floppy (a), hard disk (c) or CD-ROM (d). Hard disk boot is
 the default.
 
+@item -disk ide,img=file[,hdx=a..dd][,type=disk|cdrom]
+Use @var{file} as the IDE disk/CD-ROM image. The defaults are: hdx=a,type=disk
+
+@item -disk scsi,img=file[,sdx=a..g][,type=disk|cdrom][,id=n]
+Use @var{file} as the SCSI disk/CD-ROM image. The defaults are: sdx=a,type=disk,id='auto assign'
+
 @item -snapshot
 Write to temporary files instead of disk image files. In this case,
 the raw disk image you use is not written back. You can however force
-the write back by pressing @key{C-a s} (@pxref{disk_images}). 
+the write back by pressing @key{C-a s} (@pxref{disk_images}).
 
 @item -no-fd-bootchk
 Disable boot signature checking for floppy disks in Bochs BIOS. It may