diff --git a/src/mame/drivers/royalmah.c b/src/mame/drivers/royalmah.c
index e16b799c992..08272642489 100644
--- a/src/mame/drivers/royalmah.c
+++ b/src/mame/drivers/royalmah.c
@@ -578,7 +578,7 @@ ADDRESS_MAP_END
 
 static ADDRESS_MAP_START( janho_map, ADDRESS_SPACE_PROGRAM, 8 )
 	AM_RANGE( 0x0000, 0x6fff ) AM_ROM AM_WRITE( royalmah_rom_w )
-	AM_RANGE( 0x7000, 0x7fff ) AM_RAM AM_SHARE("share1") AM_SHARE("nvram")
+	AM_RANGE( 0x7000, 0x7fff ) AM_RAM AM_SHARE("nvram")
 	AM_RANGE( 0x8000, 0xffff ) AM_WRITEONLY AM_BASE_MEMBER(royalmah_state, videoram)
 ADDRESS_MAP_END
 
@@ -592,7 +592,7 @@ static ADDRESS_MAP_START( janoh_sub_map, ADDRESS_SPACE_PROGRAM, 8 )
 	AM_RANGE( 0x6000, 0x607f ) AM_RAM
 	AM_RANGE( 0x7000, 0x7000 ) AM_READNOP
 	AM_RANGE( 0x7200, 0x7200 ) AM_WRITENOP
-	AM_RANGE( 0xf000, 0xffff ) AM_RAM AM_SHARE("share1")
+	AM_RANGE( 0xf000, 0xffff ) AM_RAM AM_SHARE("nvram")
 ADDRESS_MAP_END
 
 static ADDRESS_MAP_START( janoh_sub_iomap, ADDRESS_SPACE_IO, 8 )