diff --git a/src/mame/drivers/taitotz.cpp b/src/mame/drivers/taitotz.cpp
index c83e0494595..f9f251d39c5 100644
--- a/src/mame/drivers/taitotz.cpp
+++ b/src/mame/drivers/taitotz.cpp
@@ -2668,10 +2668,10 @@ static MACHINE_CONFIG_START( taitotz, taitotz_state )
 
 	/* TMP95C063F I/O CPU */
 	MCFG_CPU_ADD("iocpu", TMP95C063, 25000000)
-	MCFG_TMP95C063_PORT9_WRITE(IOPORT("INPUTS1"))
-	MCFG_TMP95C063_PORTB_WRITE(IOPORT("INPUTS2"))
-	MCFG_TMP95C063_PORTD_WRITE(IOPORT("INPUTS3"))
-	MCFG_TMP95C063_PORTE_WRITE(IOPORT("INPUTS4"))
+	MCFG_TMP95C063_PORT9_READ(IOPORT("INPUTS1"))
+	MCFG_TMP95C063_PORTB_READ(IOPORT("INPUTS2"))
+	MCFG_TMP95C063_PORTD_READ(IOPORT("INPUTS3"))
+	MCFG_TMP95C063_PORTE_READ(IOPORT("INPUTS4"))
 
 	MCFG_CPU_PROGRAM_MAP(tlcs900h_mem)
 	MCFG_CPU_VBLANK_INT_DRIVER("screen", taitotz_state,  taitotz_vbi)