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-rw-r--r--src/mame/drivers/a7800.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mame/drivers/a7800.cpp b/src/mame/drivers/a7800.cpp
index 62fd68ad661..d32eeb2ce3f 100644
--- a/src/mame/drivers/a7800.cpp
+++ b/src/mame/drivers/a7800.cpp
@@ -1392,7 +1392,8 @@ MACHINE_CONFIG_START(a7800_state::a7800_ntsc)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(a7800_state::a7800_pal, a7800_ntsc)
+MACHINE_CONFIG_START(a7800_state::a7800_pal)
+ a7800_ntsc(config);
/* basic machine hardware */
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_CLOCK(CLK_PAL)