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-rw-r--r--src/mame/drivers/psx.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mame/drivers/psx.cpp b/src/mame/drivers/psx.cpp
index 2e59b135352..3543709f36c 100644
--- a/src/mame/drivers/psx.cpp
+++ b/src/mame/drivers/psx.cpp
@@ -555,7 +555,8 @@ MACHINE_CONFIG_START(psx1_state::psj)
MCFG_PSX_DMA_CHANNEL_WRITE( "maincpu", 3, psxdma_device::write_delegate(&psx1_state::cd_dma_write, this ) )
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(psx1_state::psu, psj)
+MACHINE_CONFIG_START(psx1_state::psu)
+ psj(config);
MCFG_CPU_ADD( "subcpu", HD63705, 4166667 ) // MC68HC05G6
MCFG_CPU_PROGRAM_MAP( subcpu_map )
MACHINE_CONFIG_END