diff --git a/lib/mongodb/connection/server.js b/lib/mongodb/connection/server.js
index b249c5a4ab5..ab45d7b7cf6 100644
--- a/lib/mongodb/connection/server.js
+++ b/lib/mongodb/connection/server.js
@@ -275,6 +275,7 @@ Server.prototype.connect = function(dbInstance, options, callback) {
     var connection = connectionPool.checkoutConnection();
     // Set server state to connected
     server._serverState = 'connected';
+    dbInstance._state = 'connected'; //Avoid trapped in db connecting state if mistakenly call db.open first and server connect afterward
 
     // Register handler for messages
     dbInstance._registerHandler(db_command, false, connection, connectHandler);