diff --git a/src/mame/drivers/mjkjidai.cpp b/src/mame/drivers/mjkjidai.cpp
index 25fb041d178..d6678a54385 100644
--- a/src/mame/drivers/mjkjidai.cpp
+++ b/src/mame/drivers/mjkjidai.cpp
@@ -161,7 +161,7 @@ static INPUT_PORTS_START( mjkjidai )
 
 	PORT_START("KEYBOARD")
 	PORT_BIT( 0x3f, IP_ACTIVE_HIGH, IPT_CUSTOM) PORT_CUSTOM_MEMBER(DEVICE_SELF, mjkjidai_state, keyboard_r, nullptr)
-	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_TILT )   // reinitialize NVRAM and reset the game
+	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_MEMORY_RESET )   // reinitialize NVRAM and reset the game
 	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 )
 
 	PORT_START("ROW.0")