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Diffstat (limited to 'src/mame/audio/williams.c')
-rw-r--r--src/mame/audio/williams.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/audio/williams.c b/src/mame/audio/williams.c
index a9988c2588c..c424b768ef8 100644
--- a/src/mame/audio/williams.c
+++ b/src/mame/audio/williams.c
@@ -158,14 +158,14 @@ static const pia6821_interface cvsd_pia_intf =
****************************************************************************/
/* YM2151 structure (CVSD variant) */
-static struct YM2151interface cvsd_ym2151_interface =
+static const struct YM2151interface cvsd_ym2151_interface =
{
cvsd_ym2151_irq
};
/* YM2151 structure (ADPCM variant) */
-static struct YM2151interface adpcm_ym2151_interface =
+static const struct YM2151interface adpcm_ym2151_interface =
{
adpcm_ym2151_irq
};