diff --git a/lib/Connection.js b/lib/Connection.js
index 613d8cc..b5315a8 100644
--- a/lib/Connection.js
+++ b/lib/Connection.js
@@ -105,6 +105,7 @@ Connection.prototype.connect = function() {
     for (var k in config.tlsOptions)
       tlsOptions[k] = config.tlsOptions[k];
     tlsOptions.socket = socket;
+    tlsOptions.host = config.host;
   }
 
   if (config.tls)
@@ -1633,6 +1634,7 @@ Connection.prototype._starttls = function() {
     for (var k in this._config.tlsOptions)
       tlsOptions[k] = this._config.tlsOptions[k];
     tlsOptions.socket = self._sock;
+    tlsOptions.host = this._config.host;
 
     self._sock = tls.connect(tlsOptions, function() {
       self._login();