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-rw-r--r--src/mess/drivers/alphatro.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mess/drivers/alphatro.c b/src/mess/drivers/alphatro.c
index de8516f5e70..cf88d89029f 100644
--- a/src/mess/drivers/alphatro.c
+++ b/src/mess/drivers/alphatro.c
@@ -48,7 +48,7 @@ public:
required_device<mc6845_device> m_crtc;
required_device<i8251_device> m_usart;
required_device<cassette_image_device> m_cass;
- required_device<device_t> m_beep;
+ required_device<beep_device> m_beep;
DECLARE_READ8_MEMBER(port10_r);
DECLARE_WRITE8_MEMBER(port10_w);