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-rw-r--r--src/mess/includes/beta.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mess/includes/beta.h b/src/mess/includes/beta.h
index 0c6ded0d9dd..1d049ef5812 100644
--- a/src/mess/includes/beta.h
+++ b/src/mess/includes/beta.h
@@ -27,7 +27,7 @@ public:
{ }
required_device<cpu_device> m_maincpu;
- required_device<device_t> m_speaker;
+ required_device<speaker_sound_device> m_speaker;
virtual void machine_start();