diff --git a/sound/drivers/pcsp/pcsp_lib.c b/sound/drivers/pcsp/pcsp_lib.c
index aca2d7d5f059568bfc485b906ac8a351f4f7159b..44b3632f6940c4713ed49f67612d21c3e52b2b43 100644
--- a/sound/drivers/pcsp/pcsp_lib.c
+++ b/sound/drivers/pcsp/pcsp_lib.c
@@ -323,7 +323,7 @@ static int snd_pcsp_playback_open(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-static struct snd_pcm_ops snd_pcsp_playback_ops = {
+static const struct snd_pcm_ops snd_pcsp_playback_ops = {
 	.open = snd_pcsp_playback_open,
 	.close = snd_pcsp_playback_close,
 	.ioctl = snd_pcm_lib_ioctl,