diff --git a/src/mame/drivers/megaplay.cpp b/src/mame/drivers/megaplay.cpp
index 3a88ac0995a..2b6ac24a955 100644
--- a/src/mame/drivers/megaplay.cpp
+++ b/src/mame/drivers/megaplay.cpp
@@ -544,7 +544,7 @@ READ8_MEMBER(mplay_state::bios_6404_r)
 WRITE8_MEMBER(mplay_state::bios_6404_w)
 {
 	if(((m_bios_6404 & 0x0c) == 0x00) && ((data & 0x0c) == 0x0c))
-		m_maincpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
+		m_maincpu->pulse_input_line(INPUT_LINE_RESET, attotime::zero);
 	m_bios_6404 = data;
 
 //  logerror("BIOS: 0x6404 write: 0x%02x\n", data);