diff --git a/media/baseset/orig_dos.obg b/media/baseset/orig_dos.obg
--- a/media/baseset/orig_dos.obg
+++ b/media/baseset/orig_dos.obg
@@ -6,7 +6,7 @@ name              = original_dos
 shortname         = TTDD
 version           = 1
 palette           = DOS
-!! description STR_BASEGRAPHICS_DOS_DESCRIPTION
+@description_STR_BASEGRAPHICS_DOS_DESCRIPTION@
 
 [files]
 base              = TRG1.GRF
@@ -22,7 +22,7 @@ TRGI.GRF          = da6a6c9dcc451eec88d7
 TRGC.GRF          = ed446637e034104c5559b32c18afe78d
 TRGH.GRF          = ee6616fb0e6ef6b24892c58c93d86fc9
 TRGT.GRF          = e30e8a398ae86c03dc534a8ac7dfb3b6
-ORIG_EXTRA.GRF    =
+ORIG_EXTRA.GRF    = ${ORIG_EXTRA_GRF_MD5}
 
 [origin]
 default           = You can find it on your Transport Tycoon Deluxe CD-ROM.