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-rw-r--r--src/mame/drivers/ladybug.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mame/drivers/ladybug.cpp b/src/mame/drivers/ladybug.cpp
index 2e5358c085f..e513e301372 100644
--- a/src/mame/drivers/ladybug.cpp
+++ b/src/mame/drivers/ladybug.cpp
@@ -551,7 +551,8 @@ MACHINE_CONFIG_START(ladybug_state::ladybug)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(ladybug_state::dorodon, ladybug)
+MACHINE_CONFIG_START(ladybug_state::dorodon)
+ ladybug(config);
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_OPCODES_MAP(decrypted_opcodes_map)
MACHINE_CONFIG_END