diff --git a/include/sound/tea575x-tuner.h b/include/sound/tea575x-tuner.h
index e8eeb3a..b62ce3e 100644
--- a/include/sound/tea575x-tuner.h
+++ b/include/sound/tea575x-tuner.h
@@ -30,6 +30,7 @@
 struct snd_tea575x_ops {
 	void (*write)(struct snd_tea575x *tea, unsigned int val);
 	unsigned int (*read)(struct snd_tea575x *tea);
+	void (*mute)(struct snd_tea575x *tea, unsigned int mute);
 };
 
 struct snd_tea575x {