diff --git a/index.js b/index.js
index 3ee9abc..f9d5a65 100644
--- a/index.js
+++ b/index.js
@@ -200,7 +200,7 @@ function createSecureSocket(options, cb) {
   TunnelingAgent.prototype.createSocket.call(self, options, function(socket) {
     // 0 is dummy port for v0.6
     var secureSocket = tls.connect(0, mergeOptions({}, self.options,
-      { servername: options.host
+      { servername: self.options.servername || options.host
       , socket: socket
       }
     ))