diff --git a/targets/tyan/s2881/Config.lb b/targets/tyan/s2881/Config.lb
index d7bf7a4825..112236d347 100644
--- a/targets/tyan/s2881/Config.lb
+++ b/targets/tyan/s2881/Config.lb
@@ -7,10 +7,12 @@ mainboard tyan/s2881
 
 # Tyan s2881
 romimage "normal"
-#       48K for SCSI FW or ATI ROM
-        option ROM_SIZE = 512*1024-48*1024
-#       48K for SCSI FW and 48K for ATI ROM
-#        option ROM_SIZE = 512*1024-48*1024-48*1024
+#       36K for ATI ROM
+        option ROM_SIZE = 512*1024-36*1024
+#       48K for SCSI FW
+#        option ROM_SIZE = 512*1024-48*1024
+#       48K for SCSI FW and 36K for ATI ROM
+#        option ROM_SIZE = 512*1024-48*1024-36*1024
 #       64K for Etherboot
 #        option ROM_SIZE = 512*1024-64*1024
 	option USE_FALLBACK_IMAGE=0