diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index eaaa861..08ef3d2 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -291,6 +291,9 @@
 /* Writing them here to avoid exposing memcg's inner layout */
 #if defined(CONFIG_INET) && defined(CONFIG_MEMCG_KMEM)
 
+struct static_key memcg_sockets_enabled_key;
+EXPORT_SYMBOL(memcg_sockets_enabled_key);
+
 void sock_update_memcg(struct sock *sk)
 {
 	struct mem_cgroup *memcg;