diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 9df115e89f6c..1bc81be07ccd 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4606,7 +4606,11 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
 
 			nla = nla_find(attrs, attrlen, RTA_GATEWAY);
 			if (nla) {
-				nla_memcpy(&r_cfg.fc_gateway, nla, 16);
+				err = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
+							extack);
+				if (err)
+					return err;
+
 				r_cfg.fc_flags |= RTF_GATEWAY;
 			}
 		}