diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index 3a9fd4826b75da9c6c11157f17db2c4d04f76bd5..ea16c8faf20c269ab41cac8c22927316d0785b1d 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -28,7 +28,7 @@ static struct cgroup_subsys_state *cgrp_create(struct cgroup_subsys *ss,
 static void cgrp_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp);
 static int cgrp_populate(struct cgroup_subsys *ss, struct cgroup *cgrp);
 
-struct cgroup_subsys net_prio_subsys = {
+static struct cgroup_subsys net_prio_subsys = {
 	.name		= "net_prio",
 	.create		= cgrp_create,
 	.destroy	= cgrp_destroy,