diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index 9c22396..9c8d31b 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -54,3 +54,9 @@
 #endif
 
 /* */
+
+#ifdef CONFIG_NET_CLS_CGROUP
+SUBSYS(net_cls)
+#endif
+
+/* */