diff --git a/src/devices/machine/6850acia.cpp b/src/devices/machine/6850acia.cpp
index 7c1fcc85178..82615fbaf32 100644
--- a/src/devices/machine/6850acia.cpp
+++ b/src/devices/machine/6850acia.cpp
@@ -158,7 +158,10 @@ void acia6850_device::device_start()
 	save_item(NAME(m_rx_parity));
 	save_item(NAME(m_rx_counter));
 	save_item(NAME(m_rx_irq_enable));
+}
 
+void acia6850_device::device_reset()
+{
 	output_txd(1);
 	output_rts(1);
 	output_irq(1);
diff --git a/src/devices/machine/6850acia.h b/src/devices/machine/6850acia.h
index efaf153bc0c..df8c4a3bc29 100644
--- a/src/devices/machine/6850acia.h
+++ b/src/devices/machine/6850acia.h
@@ -51,6 +51,7 @@ protected:
 
 	// device-level overrides
 	virtual void device_start() override;
+	virtual void device_reset() override;
 
 	virtual void update_irq();
 	int calculate_txirq();