diff --git a/src/mame/drivers/champbas.cpp b/src/mame/drivers/champbas.cpp
index c2055b824a1..97f1fc12b41 100644
--- a/src/mame/drivers/champbas.cpp
+++ b/src/mame/drivers/champbas.cpp
@@ -512,13 +512,6 @@ void champbas_state::machine_start()
 	save_item(NAME(m_gfx_bank));
 }
 
-void champbas_state::machine_reset()
-{
-	// 74LS259 is auto CLR on reset
-	for (int i = 0; i < 8; i++)
-		m_maincpu->space(AS_PROGRAM).write_byte(0xa000 + i, 0);
-}
-
 INTERRUPT_GEN_MEMBER(champbas_state::vblank_irq)
 {
 	if (m_irq_mask)
diff --git a/src/mame/includes/champbas.h b/src/mame/includes/champbas.h
index cec1f2fa6a9..341e3feb601 100644
--- a/src/mame/includes/champbas.h
+++ b/src/mame/includes/champbas.h
@@ -70,7 +70,6 @@ protected:
 
 	virtual void machine_start() override;
 	virtual void video_start() override;
-	virtual void machine_reset() override;
 
 	void champbas_map(address_map &map);
 	void champbasj_map(address_map &map);