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Diffstat (limited to 'src/mame/drivers/firetrk.cpp')
-rw-r--r--src/mame/drivers/firetrk.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mame/drivers/firetrk.cpp b/src/mame/drivers/firetrk.cpp
index a7b7bb5d3f9..cc5a3402041 100644
--- a/src/mame/drivers/firetrk.cpp
+++ b/src/mame/drivers/firetrk.cpp
@@ -881,7 +881,8 @@ MACHINE_CONFIG_START(firetrk_state::firetrk)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(firetrk_state::superbug, firetrk)
+MACHINE_CONFIG_START(firetrk_state::superbug)
+ firetrk(config);
/* basic machine hardware */
MCFG_CPU_MODIFY("maincpu")
@@ -905,7 +906,8 @@ MACHINE_CONFIG_DERIVED(firetrk_state::superbug, firetrk)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(firetrk_state::montecar, firetrk)
+MACHINE_CONFIG_START(firetrk_state::montecar)
+ firetrk(config);
/* basic machine hardware */
MCFG_CPU_MODIFY("maincpu")