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-rw-r--r--src/mame/drivers/wallc.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mame/drivers/wallc.cpp b/src/mame/drivers/wallc.cpp
index 5b72a8c319c..76417032c61 100644
--- a/src/mame/drivers/wallc.cpp
+++ b/src/mame/drivers/wallc.cpp
@@ -500,12 +500,14 @@ MACHINE_CONFIG_START(wallc_state::wallc)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(wallc_state::wallca, wallc)
+MACHINE_CONFIG_START(wallc_state::wallca)
+ wallc(config);
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_CLOCK(12_MHz_XTAL / 4)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(wallc_state::unkitpkr, wallc)
+MACHINE_CONFIG_START(wallc_state::unkitpkr)
+ wallc(config);
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(unkitpkr_map)