From 11795071fb8f78a268522a90691887d679685f53 Mon Sep 17 00:00:00 2001
From: Asim Aslam <asim@aslam.me>
Date: Thu, 8 Aug 2019 12:45:37 +0100
Subject: [PATCH] Fix panic

---
 tunnel/default.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tunnel/default.go b/tunnel/default.go
index 7d2d3984..12468f74 100644
--- a/tunnel/default.go
+++ b/tunnel/default.go
@@ -116,6 +116,10 @@ func (t *tun) process() {
 				Body:   msg.data.Body,
 			}
 
+			if nmsg.Header == nil {
+				nmsg.Header = make(map[string]string)
+			}
+
 			// set the tunnel id on the outgoing message
 			nmsg.Header["Micro-Tunnel-Id"] = msg.id