diff --git a/config.h b/config.h
index 1cc7051..c79855e 100644
--- a/config.h
+++ b/config.h
@@ -36,6 +36,7 @@
 struct interface {
 	STAILQ_ENTRY(interface) list;
 	char name[MAX_IFNAME_SIZE + 1];
+	char ts_label[MAX_IFNAME_SIZE + 1];
 	struct sk_ts_info ts_info;
 };