diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 7c52fe2..b0dc818 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -18,6 +18,7 @@
 static DEFINE_MUTEX(net_mutex);
 
 LIST_HEAD(net_namespace_list);
+EXPORT_SYMBOL_GPL(net_namespace_list);
 
 struct net init_net;
 EXPORT_SYMBOL(init_net);