diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
index f85131b..5402f82 100644
--- a/sound/atmel/ac97c.c
+++ b/sound/atmel/ac97c.c
@@ -461,7 +461,7 @@ atmel_ac97c_capture_pointer(struct snd_pcm_substream *substream)
 	return frames;
 }
 
-static struct snd_pcm_ops atmel_ac97_playback_ops = {
+static const struct snd_pcm_ops atmel_ac97_playback_ops = {
 	.open		= atmel_ac97c_playback_open,
 	.close		= atmel_ac97c_playback_close,
 	.ioctl		= snd_pcm_lib_ioctl,
@@ -472,7 +472,7 @@ static struct snd_pcm_ops atmel_ac97_playback_ops = {
 	.pointer	= atmel_ac97c_playback_pointer,
 };
 
-static struct snd_pcm_ops atmel_ac97_capture_ops = {
+static const struct snd_pcm_ops atmel_ac97_capture_ops = {
 	.open		= atmel_ac97c_capture_open,
 	.close		= atmel_ac97c_capture_close,
 	.ioctl		= snd_pcm_lib_ioctl,