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-rw-r--r--src/mame/drivers/mexico86.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mame/drivers/mexico86.cpp b/src/mame/drivers/mexico86.cpp
index 0afe0e2c2c9..cf6099ee5bb 100644
--- a/src/mame/drivers/mexico86.cpp
+++ b/src/mame/drivers/mexico86.cpp
@@ -469,7 +469,8 @@ MACHINE_CONFIG_START(mexico86_state::mexico86)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(mexico86_state::knightb, mexico86)
+MACHINE_CONFIG_START(mexico86_state::knightb)
+ mexico86(config);
/* basic machine hardware */
@@ -481,7 +482,8 @@ MACHINE_CONFIG_DERIVED(mexico86_state::knightb, mexico86)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(mexico86_state::kikikai, knightb)
+MACHINE_CONFIG_START(mexico86_state::kikikai)
+ knightb(config);
/* basic machine hardware */