diff --git a/sound/core/ump_convert.c b/sound/core/ump_convert.c
index 0fe13d031656..85cc67de6330 100644
--- a/sound/core/ump_convert.c
+++ b/sound/core/ump_convert.c
@@ -258,6 +258,7 @@ static int cvt_legacy_sysex_to_ump(struct ump_cvt_to_ump *cvt,
 	else
 		status = UMP_SYSEX_STATUS_CONTINUE;
 	*data = ump_compose(UMP_MSG_TYPE_DATA, group, status, cvt->len);
+	data[1] = 0;
 	offset = 8;
 	for (i = 0; i < cvt->len; i++) {
 		*data |= cvt->buf[i] << offset;