diff --git a/src/mame/midway/williams.cpp b/src/mame/midway/williams.cpp
index 31a7b65b7e7..b1825cbf405 100644
--- a/src/mame/midway/williams.cpp
+++ b/src/mame/midway/williams.cpp
@@ -1753,6 +1753,7 @@ void blaster_state::blaster(machine_config &config)
 
 	INPUT_MERGER_ANY_HIGH(config, "soundirq_b").output_handler().set_inputline(m_soundcpu_b, M6808_IRQ_LINE);
 
+	m_pia[1]->writepb_handler().set(FUNC(blaster_state::blaster_snd_cmd_w));
 	m_pia[2]->writepa_handler().set("ldac", FUNC(dac_byte_interface::data_w));
 
 	PIA6821(config, m_pia[3], 0);
diff --git a/src/mame/midway/williams.h b/src/mame/midway/williams.h
index 28bc5488569..8e6aa3e8ab9 100644
--- a/src/mame/midway/williams.h
+++ b/src/mame/midway/williams.h
@@ -295,7 +295,7 @@ private:
 	void remap_select_w(u8 data);
 	void video_control_w(u8 data);
 	TIMER_CALLBACK_MEMBER(deferred_snd_cmd_w);
-	virtual void snd_cmd_w(u8 data) override;
+	void blaster_snd_cmd_w(u8 data);
 
 	virtual uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) override;
 
diff --git a/src/mame/midway/williams_m.cpp b/src/mame/midway/williams_m.cpp
index 2ae49869ad7..e0bb55b7ac2 100644
--- a/src/mame/midway/williams_m.cpp
+++ b/src/mame/midway/williams_m.cpp
@@ -422,7 +422,7 @@ TIMER_CALLBACK_MEMBER(blaster_state::deferred_snd_cmd_w)
 }
 
 
-void blaster_state::snd_cmd_w(u8 data)
+void blaster_state::blaster_snd_cmd_w(u8 data)
 {
 	machine().scheduler().synchronize(timer_expired_delegate(FUNC(blaster_state::deferred_snd_cmd_w),this), data);
 }