diff --git a/core/net/rime/tree.c b/core/net/rime/tree.c
index f36965121..dc9cbfd8c 100644
--- a/core/net/rime/tree.c
+++ b/core/net/rime/tree.c
@@ -28,7 +28,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * $Id: tree.c,v 1.7 2007/03/23 10:46:35 adamdunkels Exp $
+ * $Id: tree.c,v 1.8 2007/03/25 12:06:39 adamdunkels Exp $
  */
 
 /**
@@ -42,6 +42,7 @@
 
 #include "net/rime.h"
 #include "net/rime/neighbor.h"
+#include "net/rime/nf.h"
 #include "net/rime/tree.h"
 
 #include "dev/radio-sensor.h"
diff --git a/core/net/rime/tree.h b/core/net/rime/tree.h
index 04be7a7a4..a37bfc76b 100644
--- a/core/net/rime/tree.h
+++ b/core/net/rime/tree.h
@@ -28,7 +28,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * $Id: tree.h,v 1.4 2007/03/22 18:54:22 adamdunkels Exp $
+ * $Id: tree.h,v 1.5 2007/03/25 12:06:39 adamdunkels Exp $
  */
 
 /**
@@ -41,6 +41,9 @@
 #ifndef __TREE_H__
 #define __TREE_H__
 
+#include "net/rime/uibc.h"
+#include "net/rime/ruc.h"
+
 struct tree_callbacks {
   void (* recv)(rimeaddr_t *originator, u8_t seqno,
 		u8_t hops, u8_t retransmissions);