diff --git a/bgpd/bgp_zebra.c b/bgpd/bgp_zebra.c
index d0a016c066..e3465feda8 100644
--- a/bgpd/bgp_zebra.c
+++ b/bgpd/bgp_zebra.c
@@ -424,7 +424,7 @@ static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS)
 			if (!IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6) &&
 			    memcmp(&peer->nexthop.v6_global, &addr->u.prefix6, IPV6_MAX_BYTELEN) ==
 				    0) {
-				memset(&peer->nexthop.v6_global, 0, 16);
+				memset(&peer->nexthop.v6_global, 0, IPV6_MAX_BYTELEN);
 				FOREACH_AFI_SAFI (afi, safi)
 					bgp_announce_route(peer, afi, safi,
 							   true);