diff --git a/src/mame/drivers/champbwl.c b/src/mame/drivers/champbwl.c
index 9e67909f442..cc0cf91e363 100644
--- a/src/mame/drivers/champbwl.c
+++ b/src/mame/drivers/champbwl.c
@@ -695,5 +695,5 @@ ROM_START( doraemon )
 	ROM_LOAD( "u27-01.bin", 0x00200, 0x200, CRC(66245fc7) SHA1(c94d9dce7b557c21a3dc1f3f8a1b29594715c994) )
 ROM_END
 
-GAME( ????, doraemon, 0, doraemon, doraemon, driver_device, 0, ROT0,   "Sunsoft / Epoch", "Doraemon no Eawase Montage (prototype)", GAME_SUPPORTS_SAVE )
+GAME( 1993?,doraemon, 0, doraemon, doraemon, driver_device, 0, ROT0,   "Sunsoft / Epoch", "Doraemon no Eawase Montage (prototype)", GAME_SUPPORTS_SAVE ) // year not shown, datecodes on pcb suggests late-1993
 GAME( 1989, champbwl, 0, champbwl, champbwl, driver_device, 0, ROT270, "Seta / Romstar Inc.", "Championship Bowling", GAME_SUPPORTS_SAVE )