diff --git a/src/mame/drivers/yunsung8.cpp b/src/mame/drivers/yunsung8.cpp
index 203db5bb8d1..441c4dfa95a 100644
--- a/src/mame/drivers/yunsung8.cpp
+++ b/src/mame/drivers/yunsung8.cpp
@@ -608,8 +608,8 @@ ROM_END
 
 ***************************************************************************/
 
-GAME( 1995,  cannball,  0,        yunsung8, cannball, driver_device, 0, ROT0,   "Yun Sung / Soft Vision", "Cannon Ball (Yun Sung, horizontal)",  MACHINE_SUPPORTS_SAVE )
-GAME( 1995,  cannballv, cannball, yunsung8, cannbalv, driver_device, 0, ROT270, "Yun Sung / T&K",         "Cannon Ball (Yun Sung, vertical)",    MACHINE_SUPPORTS_SAVE )
-GAME( 1995,  magix,     0,        yunsung8, magix,    driver_device, 0, ROT0,   "Yun Sung",               "Magix / Rock",                        MACHINE_SUPPORTS_SAVE )
-GAME( 1995,  magixb,    magix,    yunsung8, magix,    driver_device, 0, ROT0,   "Yun Sung",               "Magix / Rock (no copyright message)", MACHINE_SUPPORTS_SAVE ) // was marked as bootleg, but has been seen on original PCBs
-GAME( 1994?, rocktris,  0,        yunsung8, rocktris, driver_device, 0, ROT0,   "Yun Sung",               "Rock Tris",                           MACHINE_SUPPORTS_SAVE )
+GAME( 1995,  cannball,  0,        yunsung8, cannball, driver_device, 0, ROT0,   "Yun Sung / Soft Vision",    "Cannon Ball (Yun Sung, horizontal)",  MACHINE_SUPPORTS_SAVE )
+GAME( 1995,  cannballv, cannball, yunsung8, cannbalv, driver_device, 0, ROT270, "Yun Sung / J&K Production", "Cannon Ball (Yun Sung, vertical)",    MACHINE_SUPPORTS_SAVE )
+GAME( 1995,  magix,     0,        yunsung8, magix,    driver_device, 0, ROT0,   "Yun Sung",                  "Magix / Rock",                        MACHINE_SUPPORTS_SAVE )
+GAME( 1995,  magixb,    magix,    yunsung8, magix,    driver_device, 0, ROT0,   "Yun Sung",                  "Magix / Rock (no copyright message)", MACHINE_SUPPORTS_SAVE ) // was marked as bootleg, but has been seen on original PCBs
+GAME( 1994?, rocktris,  0,        yunsung8, rocktris, driver_device, 0, ROT0,   "Yun Sung",                  "Rock Tris",                           MACHINE_SUPPORTS_SAVE )