diff --git a/lib/rpc-client/mailstation.js b/lib/rpc-client/mailstation.js
index 38b3b94..cf9c3bc 100644
--- a/lib/rpc-client/mailstation.js
+++ b/lib/rpc-client/mailstation.js
@@ -322,6 +322,7 @@ var lazyConnect = function(tracer, station, serverId, factory, cb) {
   var server = station.servers[serverId];
   if(!server) {
     logger.error('[pomelo-rpc] unknown server: %s', serverId);
+    return false;
   }
   var mailbox = factory.create(server, station.opts);
   station.connecting[serverId] = true;
@@ -381,4 +382,4 @@ var errorHandler = function(tracer, station, err, serverId, msg, opts, flag, cb)
  */
 module.exports.create = function(opts) {
   return new MailStation(opts || {});
-};
\ No newline at end of file
+};
diff --git a/package.json b/package.json
index 68e1cd6..29ab78b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "pomelo-rpc",
-	"version": "1.0.2",
+	"version": "1.0.4",
 	"dependencies": {
 		"ws": "0.8.0",
 		"crc": "0.2.0",
@@ -13,4 +13,4 @@
 		"mocha": ">=0.0.1",
 		"should": ">=0.0.1"
 	}
-}
\ No newline at end of file
+}