diff --git a/extensions/pknock/xt_pknock.c b/extensions/pknock/xt_pknock.c
index a9df420..ba81615 100644
--- a/extensions/pknock/xt_pknock.c
+++ b/extensions/pknock/xt_pknock.c
@@ -677,7 +677,7 @@ static bool
 msg_to_userspace_nl(const struct xt_pknock_mtinfo *info,
                 const struct peer *peer, int multicast_group)
 {
-#if defined(CONFIG_CONNECTOR) || defined(CONFIG_CONNECTOR_MODULE)
+#if IS_ENABLED(CONFIG_CONNECTOR)
 	struct cn_msg *m;
 	struct xt_pknock_nl_msg msg;
 
@@ -1101,7 +1101,7 @@ static struct xt_match xt_pknock_mt_reg __read_mostly = {
 
 static int __init xt_pknock_mt_init(void)
 {
-#if !defined(CONFIG_CONNECTOR) && !defined(CONFIG_CONNECTOR_MODULE)
+#if !IS_ENABLED(CONFIG_CONNECTOR)
 	if (nl_multicast_group != -1)
 		pr_info("CONFIG_CONNECTOR not present; "
 		        "netlink messages disabled\n");