diff --git a/src/emu/video/mc6845.c b/src/emu/video/mc6845.c
index ca50b598d78..c7aef62dde2 100644
--- a/src/emu/video/mc6845.c
+++ b/src/emu/video/mc6845.c
@@ -1313,6 +1313,7 @@ void mc6845_device::device_reset()
 	m_horiz_disp = 0;
 	m_cursor_x = 0;
 	m_mode_control = 0;
+	m_register_address_latch = 0;
 }