diff --git a/src/devices/machine/fdc37c93x.cpp b/src/devices/machine/fdc37c93x.cpp
index 5d7fed53196..9e76e058a00 100644
--- a/src/devices/machine/fdc37c93x.cpp
+++ b/src/devices/machine/fdc37c93x.cpp
@@ -275,7 +275,9 @@ void fdc37c93x_device::device_add_mconfig(machine_config &config)
 	// keyboard
 	KBDC8042(config, m_kbdc);
 	m_kbdc->set_keyboard_type(kbdc8042_device::KBDC8042_PS2);
+	m_kbdc->set_interrupt_type(kbdc8042_device::KBDC8042_DOUBLE);
 	m_kbdc->input_buffer_full_callback().set(FUNC(fdc37c93x_device::irq_keyboard_w));
+	m_kbdc->input_buffer_full_mouse_callback().set(FUNC(fdc37c93x_device::irq_mouse_w));
 	m_kbdc->system_reset_callback().set(FUNC(fdc37c93x_device::kbdp20_gp20_reset_w));
 	m_kbdc->gate_a20_callback().set(FUNC(fdc37c93x_device::kbdp21_gp25_gatea20_w));
 }