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Diffstat (limited to 'src/mame/drivers/bottom9.c')
-rw-r--r--src/mame/drivers/bottom9.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/drivers/bottom9.c b/src/mame/drivers/bottom9.c
index 54877a1e21c..e02df10d8a0 100644
--- a/src/mame/drivers/bottom9.c
+++ b/src/mame/drivers/bottom9.c
@@ -383,13 +383,13 @@ static void volume_callback1(int v)
K007232_set_volume(1,1,0,(v & 0x0f) * 0x11);
}
-static struct K007232_interface k007232_interface_1 =
+static const struct K007232_interface k007232_interface_1 =
{
REGION_SOUND1,
volume_callback0
};
-static struct K007232_interface k007232_interface_2 =
+static const struct K007232_interface k007232_interface_2 =
{
REGION_SOUND2,
volume_callback1