From 7d3d4714737da70cc4a8a4e5d840ca26ec062fcd Mon Sep 17 00:00:00 2001
From: Tom Henderson <tomh@tomh.org>
Date: Sun, 17 Jan 2021 11:42:50 -0800
Subject: [PATCH] Add missing forward declaration

---
 src/sixlowpan/helper/sixlowpan-helper.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/sixlowpan/helper/sixlowpan-helper.h b/src/sixlowpan/helper/sixlowpan-helper.h
index 5785821fa..87af498f7 100644
--- a/src/sixlowpan/helper/sixlowpan-helper.h
+++ b/src/sixlowpan/helper/sixlowpan-helper.h
@@ -29,6 +29,7 @@ namespace ns3 {
 
 class Node;
 class AttributeValue;
+class Time;
 
 /**
  * \ingroup sixlowpan