diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index aee7c04d49e5..b61ba0321a72 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -915,7 +915,7 @@ static void print_formats(struct snd_dummy *dummy,
 {
 	int i;
 
-	for (i = 0; i < SNDRV_PCM_FORMAT_LAST; i++) {
+	for (i = 0; i <= SNDRV_PCM_FORMAT_LAST; i++) {
 		if (dummy->pcm_hw.formats & (1ULL << i))
 			snd_iprintf(buffer, " %s", snd_pcm_format_name(i));
 	}