diff --git a/src/emu/machine/z80dma.c b/src/emu/machine/z80dma.c
index b5748655f38..34ba154a0e7 100644
--- a/src/emu/machine/z80dma.c
+++ b/src/emu/machine/z80dma.c
@@ -230,6 +230,7 @@ void z80dma_device::device_reset()
 	m_read_num_follow = m_read_cur_follow = 0;
 	m_reset_pointer = 0;
 	m_is_read = false;
+	memset(m_regs, 0, sizeof(m_regs));
 	memset(m_regs_follow, 0, sizeof(m_regs_follow));
 
 	// disable interrupts