diff --git a/lib/realtime.js b/lib/realtime.js
index 86d361ef1..795629012 100644
--- a/lib/realtime.js
+++ b/lib/realtime.js
@@ -298,7 +298,7 @@ function startConnection(socket) {
                 socket.disconnect(true);
                 //clear err socket in queue
                 for (var i = 0; i < connectionSocketQueue.length; i++) {
-                    if (connectionSocketQueue[i].id == socket.id)
+                    if (!connectionSocketQueue[i] || connectionSocketQueue[i].id == socket.id)
                         connectionSocketQueue.splice(i, 1);
                 }
                 isConnectionBusy = false;