diff --git a/daemon/call_interfaces.c b/daemon/call_interfaces.c
index 868845888..30060c635 100644
--- a/daemon/call_interfaces.c
+++ b/daemon/call_interfaces.c
@@ -2702,7 +2702,7 @@ static const char *play_media_select_party(struct call **call, GQueue *monologue
 		bencode_item_t *input)
 {
 	struct call_monologue *monologue;
-	struct sdp_ng_flags flags;
+	AUTO_CLEANUP(struct sdp_ng_flags flags, call_ng_free_flags);
 
 	g_queue_init(monologues);