diff --git a/sys/dev/sound/pci/hda/hdaa.c b/sys/dev/sound/pci/hda/hdaa.c
index 46f4704bc982..aee074019f48 100644
--- a/sys/dev/sound/pci/hda/hdaa.c
+++ b/sys/dev/sound/pci/hda/hdaa.c
@@ -4979,6 +4979,10 @@ hdaa_pcmchannel_setup(struct hdaa_chan *ch)
 		}
 		if (HDA_PARAM_SUPP_STREAM_FORMATS_AC3(fmtcap)) {
 			ch->fmtlist[i++] = SND_FORMAT(AFMT_AC3, 2, 0);
+			if (channels >= 8) {
+				ch->fmtlist[i++] = SND_FORMAT(AFMT_AC3, 8, 0);
+				ch->fmtlist[i++] = SND_FORMAT(AFMT_AC3, 8, 1);
+			}
 		}
 		ch->fmtlist[i] = 0;
 		i = 0;