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-rw-r--r--src/mame/drivers/ticalc1x.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mame/drivers/ticalc1x.cpp b/src/mame/drivers/ticalc1x.cpp
index f21d4ba8781..fe8b21493bf 100644
--- a/src/mame/drivers/ticalc1x.cpp
+++ b/src/mame/drivers/ticalc1x.cpp
@@ -556,7 +556,8 @@ MACHINE_CONFIG_START(ti1250_state::ti1250)
/* no sound! */
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(ti1250_state::ti1270, ti1250)
+MACHINE_CONFIG_START(ti1250_state::ti1270)
+ ti1250(config);
/* basic machine hardware */
MCFG_CPU_REPLACE("maincpu", TMS0970, 250000) // approximation