diff --git a/lib/server.js b/lib/server.js
index 4f6fd1f6..94282e87 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -545,7 +545,7 @@ class Client extends EventEmitter {
           let replied = false;
 
           let accept;
-          const reject = () => {
+          const reject = (msg = '') => {
             if (replied)
               return;
             replied = true;
@@ -559,7 +559,7 @@ class Client extends EventEmitter {
 
             if (localChan !== -1)
               this._chanMgr.remove(localChan);
-            proto.channelOpenFail(info.sender, reason, '');
+            proto.channelOpenFail(info.sender, reason, msg);
           };
           const reserveChannel = () => {
             localChan = this._chanMgr.add();