diff --git a/lib/Connection.js b/lib/Connection.js
index 9211dc9..700daab 100644
--- a/lib/Connection.js
+++ b/lib/Connection.js
@@ -1084,7 +1084,7 @@ Connection.prototype._resUntagged = function(info) {
 
     i = toget.length;
     if (i === 0) {
-      if (!msg.ended) {
+      if (msg && !msg.ended) {
         msg.ended = true;
         process.nextTick(function() {
           msgEmitter.emit('end');