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-rw-r--r--src/mame/includes/megadriv.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/includes/megadriv.h b/src/mame/includes/megadriv.h
index 95c9d44caf2..90ed71ebb4c 100644
--- a/src/mame/includes/megadriv.h
+++ b/src/mame/includes/megadriv.h
@@ -54,7 +54,7 @@ public:
required_device<m68000_base_device> m_maincpu;
optional_device<cpu_device> m_z80snd;
optional_device<ym2612_device> m_ymsnd;
- required_device<timer_device> m_scan_timer;
+ optional_device<timer_device> m_scan_timer;
required_device<sega315_5313_device> m_vdp;
required_device<sn76496_base_device> m_snsnd;
optional_shared_ptr<uint16_t> m_megadrive_ram;