diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index 7eac6f6..034dc1c 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -832,6 +832,7 @@
 		return err;
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
+	pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
 	pcm->private_data = chip;
 	strcpy(pcm->name, chip->card->shortname);
 	chip->pcms[0] = pcm;