diff --git a/src/mame/drivers/renegade.cpp b/src/mame/drivers/renegade.cpp
index cb214c2144a..b18e375465f 100644
--- a/src/mame/drivers/renegade.cpp
+++ b/src/mame/drivers/renegade.cpp
@@ -470,7 +470,7 @@ MACHINE_CONFIG_START(renegade_state::renegade)
 	MCFG_CPU_PROGRAM_MAP(renegade_map)
 	MCFG_TIMER_DRIVER_ADD_SCANLINE("scantimer", renegade_state, interrupt, "screen", 0, 1)
 
-	MCFG_CPU_ADD("audiocpu", M6809, 12000000/8)
+	MCFG_CPU_ADD("audiocpu", MC6809, 12000000/2) // HD68A09P
 	MCFG_CPU_PROGRAM_MAP(renegade_sound_map)    /* IRQs are caused by the main CPU */
 
 	MCFG_DEVICE_ADD("mcu", TAITO68705_MCU, 12000000/4) // ?
diff --git a/src/mame/drivers/sidepckt.cpp b/src/mame/drivers/sidepckt.cpp
index f68975291cd..faa6c65315a 100644
--- a/src/mame/drivers/sidepckt.cpp
+++ b/src/mame/drivers/sidepckt.cpp
@@ -369,7 +369,7 @@ void sidepckt_state::machine_reset()
 MACHINE_CONFIG_START(sidepckt_state::sidepckt)
 
 	/* basic machine hardware */
-	MCFG_CPU_ADD("maincpu", M6809, 2000000) /* 2 MHz */
+	MCFG_CPU_ADD("maincpu", MC6809E, 2000000) /* MC68B09EP, 2 MHz */
 	MCFG_CPU_PROGRAM_MAP(sidepckt_map)
 	MCFG_CPU_VBLANK_INT_DRIVER("screen", sidepckt_state, nmi_line_pulse)