diff --git a/doc/glossary.texi b/doc/glossary.texi
index 138d9d31..64938595 100644
--- a/doc/glossary.texi
+++ b/doc/glossary.texi
@@ -330,8 +330,8 @@ Special burn programs are needed for writing to them.
 @item DVD+R      0x1a
 @item DVD+R DL   0x2a (double layer)
 @item BD-R       0x41 (single or double layer, formatted or not)
-@item HD DVD R   0x51
-@item HD DVD RAM 0x52
+@item HD DVD-R   0x51
+@item HD DVD-RAM 0x52
 @end table
 They can assume three states:
 @table @dfn