diff --git a/bin/data/orig_win.obg b/bin/data/orig_win.obg
--- a/bin/data/orig_win.obg
+++ b/bin/data/orig_win.obg
@@ -24,7 +24,7 @@ TRGIR.GRF    = 0c2484ff6be49fc63a83be6ab
 TRGCR.GRF    = 3668f410c761a050b5e7095a2b14879b
 TRGHR.GRF    = 06bf2b7a31766f048baac2ebe43457b1
 TRGTR.GRF    = de53650517fe661ceaa3138c6edb0eb8
-OPENTTDW.GRF = d265ad550b7ca83ae94d83492c3cad11
+OPENTTDW.GRF = 0e5b39d1349da3451ba00684722b87b4
 
 [origin]
 default      = You can find it on your Transport Tycoon Deluxe CD-ROM.