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-rw-r--r--src/mame/drivers/basic52.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mame/drivers/basic52.cpp b/src/mame/drivers/basic52.cpp
index c134280af7c..5d4591e77ca 100644
--- a/src/mame/drivers/basic52.cpp
+++ b/src/mame/drivers/basic52.cpp
@@ -117,7 +117,8 @@ MACHINE_CONFIG_START(basic52_state::basic31)
MCFG_DEVICE_ADD("ppi8255", I8255, 0)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(basic52_state::basic52, basic31)
+MACHINE_CONFIG_START(basic52_state::basic52)
+ basic31(config);
/* basic machine hardware */
MCFG_CPU_REPLACE("maincpu", I8052, XTAL(11'059'200))
MCFG_CPU_PROGRAM_MAP(basic52_mem)