diff --git a/lib/srv6.h b/lib/srv6.h
index 3200aee70a..467f02a3c9 100644
--- a/lib/srv6.h
+++ b/lib/srv6.h
@@ -321,6 +321,7 @@ struct srv6_sid_ctx {
 	struct in_addr nh4;
 	struct in6_addr nh6;
 	vrf_id_t vrf_id;
+	ifindex_t ifindex;
 };
 
 static inline const char *seg6_mode2str(enum seg6_mode_t mode)