diff --git a/src/topology/pcm.c b/src/topology/pcm.c
index db401145..49c5eaba 100644
--- a/src/topology/pcm.c
+++ b/src/topology/pcm.c
@@ -604,6 +604,9 @@ int tplg_save_stream_caps(snd_tplg_t *tplg ATTRIBUTE_UNUSED,
 	if (err >= 0 && sc->buffer_size_max)
 		err = tplg_save_printf(dst, pfx, "\tbuffer_size_max %u\n",
 				       sc->buffer_size_max);
+	if (err >= 0 && sc->sig_bits)
+		err = tplg_save_printf(dst, pfx, "\tsig_bits %u\n",
+				       sc->sig_bits);
 	if (err >= 0)
 		err = tplg_save_printf(dst, pfx, "}\n");
 	return err;