diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c4e1caf..a6d706b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1655,7 +1655,7 @@
 	rx_handler_func_t __rcu	*rx_handler;
 	void __rcu		*rx_handler_data;
 
-#if CONFIG_NET_CLS_ACT
+#ifdef CONFIG_NET_CLS_ACT
 	struct tcf_proto __rcu  *ingress_cl_list;
 #endif
 	struct netdev_queue __rcu *ingress_queue;