diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 6f71db8..9ba4809 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -186,7 +186,11 @@ static int register_pernet_operations(struct list_head *list,
 	int error;
 
 	error = 0;
+#ifdef CONFIG_NET_NS
 	list_add_tail(&ops->list, list);
+#endif
+	INIT_LIST_HEAD(&ops->list);
+#endif
 	for_each_net(net) {
 		if (ops->init) {
 			error = ops->init(net);