diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 0a8220d30c99..ed2ab03cf971 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -706,7 +706,7 @@ int fib_gw_from_via(struct fib_config *cfg, struct nlattr *nla,
 		cfg->fc_gw4 = *((__be32 *)via->rtvia_addr);
 		break;
 	case AF_INET6:
-#ifdef CONFIG_IPV6
+#if IS_ENABLED(CONFIG_IPV6)
 		if (alen != sizeof(struct in6_addr)) {
 			NL_SET_ERR_MSG(extack, "Invalid IPv6 address in RTA_VIA");
 			return -EINVAL;