diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h
index e8b6ffe..5a31420 100644
--- a/net/batman-adv/hard-interface.h
+++ b/net/batman-adv/hard-interface.h
@@ -18,6 +18,17 @@
 #ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_
 #define _NET_BATMAN_ADV_HARD_INTERFACE_H_
 
+#include "main.h"
+
+#include <linux/atomic.h>
+#include <linux/compiler.h>
+#include <linux/notifier.h>
+#include <linux/rcupdate.h>
+#include <linux/stddef.h>
+#include <linux/types.h>
+
+struct net_device;
+
 enum batadv_hard_if_state {
 	BATADV_IF_NOT_IN_USE,
 	BATADV_IF_TO_BE_REMOVED,