diff --git a/src/mame/drivers/konamigv.c b/src/mame/drivers/konamigv.c
index a8d819535b0..586b320b244 100644
--- a/src/mame/drivers/konamigv.c
+++ b/src/mame/drivers/konamigv.c
@@ -21,6 +21,7 @@ tokimosh   Tokimeki Memorial Oshiete    ?              GE755   JAA          97.0
 tokimosp   Tokimeki Memorial Oshiete    ?              GE756   JAB          97.09.27   9:10
            Your Heart Seal version PLUS
 nagano98   Winter Olypmics in Nagano 98 GV999          GX720   EAA01 1.03   98.01.08  10:45
+naganoj    Winter Olypmics in Nagano 98 GV999          GX720   JAA01 1.02   98.01.07  01:10
 simpbowl   Simpsons Bowling             GV999          GQ829   UAA          ?
 
 PCB Layouts
@@ -845,11 +846,21 @@ ROM_START( nagano98 )
 	DISK_IMAGE_READONLY( "nagano98", 0, BAD_DUMP SHA1(1be7bd4531f249ff2233dd40a206c8d60054a8c6) )
 ROM_END
 
+ROM_START( naganoj )
+	GV_BIOS
+
+	ROM_REGION16_BE( 0x0000080, "eeprom", 0 ) /* default eeprom */
+	ROM_LOAD( "720ja.25c",  0x000000, 0x000080, CRC(34c473ba) SHA1(768225b04a293bdbc114a092d14dee28d52044e9) )
+
+	DISK_REGION( "cdrom" )
+	DISK_IMAGE_READONLY( "720jaa01", 0, SHA1(437160996551ef4dfca43899d1d14beca62eb4c9) )
+ROM_END
+
 ROM_START( tokimosh )
 	GV_BIOS
 
 	ROM_REGION16_BE( 0x0000080, "eeprom", 0 ) /* default eeprom */
-        ROM_LOAD( "tokimosh.25c", 0x000000, 0x000080, CRC(e57b833f) SHA1(f18a0974a6be69dc179706643aab837ff61c2738) )
+	ROM_LOAD( "tokimosh.25c", 0x000000, 0x000080, CRC(e57b833f) SHA1(f18a0974a6be69dc179706643aab837ff61c2738) )
 
 	DISK_REGION( "cdrom" )
 	DISK_IMAGE_READONLY( "755jaa01", 0, BAD_DUMP SHA1(4af080f9650e34d1ddb91bb763469d5fb3c754bd) )
@@ -877,4 +888,5 @@ GAME( 1997, weddingr, konamigv, konamigv, konamigv, konamigv, ROT0, "Konami", "W
 GAME( 1997, tokimosh, konamigv, konamigv, konamigv, tokimosh, ROT0, "Konami", "Tokimeki Memorial Oshiete Your Heart (GE755 JAA)", GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS | GAME_NOT_WORKING )
 GAME( 1997, tokimosp, konamigv, konamigv, konamigv, tokimosh, ROT0, "Konami", "Tokimeki Memorial Oshiete Your Heart Seal version PLUS (GE756 JAB)", GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS | GAME_NOT_WORKING )
 GAME( 1998, nagano98, konamigv, konamigv, konamigv, konamigv, ROT0, "Konami", "Nagano Winter Olympics '98 (GX720 EAA)", GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE)
+GAME( 1998, naganoj,  nagano98, konamigv, konamigv, konamigv, ROT0, "Konami", "Nagano Winter Olympics '98 (GX720 JAA)", GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE)
 GAME( 2000, simpbowl, konamigv, simpbowl, simpbowl, simpbowl, ROT0, "Konami", "Simpsons Bowling (GQ829 UAA)", GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS | GAME_SUPPORTS_SAVE)
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index b12d3ed90d0..b2ba21d9e80 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -3551,6 +3551,7 @@ weddingr		// GX624, JAA
 tokimosh		// GE755, JAA
 tokimosp		// GE756, JAB
 nagano98		// GX720, EAA
+naganoj			// GX720, JAA
 simpbowl		// GQ829, UAA
 
 // Konami System 573