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-rw-r--r--src/mame/drivers/z9001.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/z9001.cpp b/src/mame/drivers/z9001.cpp
index 91ab13e2e03..3ef04b6520c 100644
--- a/src/mame/drivers/z9001.cpp
+++ b/src/mame/drivers/z9001.cpp
@@ -98,7 +98,7 @@ static const z80_daisy_config z9001_daisy_chain[] =
{ "z80pio2" },
{ "z80pio1" },
{ "z80ctc" },
- { NULL }
+ { nullptr }
};
//Bits0,1 not connected; 2,3,4,5 go to a connector; 6 goes to 'graphics' LED; 7 goes to speaker.