diff --git a/src/mame/drivers/royalmah.c b/src/mame/drivers/royalmah.c
index b5102825513..27b5e6db40f 100644
--- a/src/mame/drivers/royalmah.c
+++ b/src/mame/drivers/royalmah.c
@@ -3343,7 +3343,7 @@ GAME( 1981?, openmj,   royalmj,  royalmah, royalmah, 0,        ROT0, "Sapporo Me
 GAME( 1982,  royalmah, royalmj,  royalmah, royalmah, 0,        ROT0, "bootleg",                    "Royal Mahjong (Falcon bootleg, v1.01)", 0 )
 GAME( 1983,  janyoup2, royalmj,  ippatsu,  janyoup2, 0,        ROT0, "Cosmo Denshi",               "Janyou Part II (ver 7.03, July 1 1983)",0 )
 GAME( 1984,  janoh,    0,        royalmah, royalmah, 0,        ROT0, "Toaplan",                    "Jan Oh (set 1)",                                GAME_NOT_WORKING )
-GAME( 1982,  janoha,   janoh,    janoh,    royalmah, 0,        ROT0, "Toaplan",                    "Jan Oh (set 2)", GAME_NOT_WORKING ) // this one is complete?
+GAME( 1984,  janoha,   janoh,    janoh,    royalmah, 0,        ROT0, "Toaplan",                    "Jan Oh (set 2)", GAME_NOT_WORKING ) // this one is complete?
 GAME( 1986,  dondenmj, 0,        dondenmj, majs101b, 0,        ROT0, "Dyna Electronics",           "Don Den Mahjong [BET] (Japan)",         0 )
 GAME( 1986,  ippatsu,  0,        ippatsu,  ippatsu,  ippatsu,  ROT0, "Public Software / Paradais", "Ippatsu Gyakuten [BET] (Japan)",        0 )
 GAME( 1986,  suzume,   0,        suzume,   suzume,   0,        ROT0, "Dyna Electronics",           "Watashiha Suzumechan (Japan)",          0 )
diff --git a/src/mame/mamedriv.c b/src/mame/mamedriv.c
index 14524f31b31..52fee159751 100644
--- a/src/mame/mamedriv.c
+++ b/src/mame/mamedriv.c
@@ -7324,7 +7324,8 @@ Other Sun games
 	DRIVER( openmj )	/* (c) 1982 Nichibutsu */
 	DRIVER( royalmah )	/* Falcon bootleg */
 	DRIVER( janyoup2 )	/* Falcon bootleg */
-	DRIVER( janoh )		/* (c) 1982 Toaplan */
+	DRIVER( janoh )		/* (c) 1984 Toaplan */
+	DRIVER( janoha )	/* (c) 1984 Toaplan */
 	DRIVER( suzume )	/*  ??  (c) 1986 Dyna Electronics */
 	DRIVER( hnayayoi )	/* "02" (c) 1987 Dyna Electronics */
 	DRIVER( dondenmj )	/* "03" (c) 1986 Dyna Electronics */