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-rw-r--r--src/mame/drivers/sigmab52.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/sigmab52.cpp b/src/mame/drivers/sigmab52.cpp
index bfe95985d86..8ecf7b12726 100644
--- a/src/mame/drivers/sigmab52.cpp
+++ b/src/mame/drivers/sigmab52.cpp
@@ -607,7 +607,7 @@ MACHINE_CONFIG_START(sigmab52_state::jwildb52)
PTM6840(config, m_6840ptm_2, XTAL(8'000'000)/8); // FIXME
m_6840ptm_2->irq_callback().set(FUNC(sigmab52_state::ptm2_irq));
- MCFG_NVRAM_ADD_NO_FILL("nvram")
+ NVRAM(config, "nvram", nvram_device::DEFAULT_NONE);
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)