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-rw-r--r--src/devices/sound/cem3394.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/devices/sound/cem3394.cpp b/src/devices/sound/cem3394.cpp
index b9f41cefad2..e0c74635648 100644
--- a/src/devices/sound/cem3394.cpp
+++ b/src/devices/sound/cem3394.cpp
@@ -150,6 +150,7 @@ cem3394_device::cem3394_device(const machine_config &mconfig, const char *tag, d
m_pulse_width(0),
m_inv_sample_rate(1.0/48000.0)
{
+ (void)m_filter_in;
}