diff --git a/src/include/sof/lib/dai-legacy.h b/src/include/sof/lib/dai-legacy.h
index 6594c84be76a..eb1cc5984bef 100644
--- a/src/include/sof/lib/dai-legacy.h
+++ b/src/include/sof/lib/dai-legacy.h
@@ -210,6 +210,9 @@ struct dai_data {
 
 	/* llp slot info in memory windows */
 	struct llp_slot_info slot_info;
+
+	/* Copier gain params */
+	struct copier_gain_params *gain_data;
 };
 
 struct dai {