diff --git a/apis/net/index.js b/apis/net/index.js
index <HASH>..<HASH> 100644
--- a/apis/net/index.js
+++ b/apis/net/index.js
@@ -17,7 +17,7 @@ function NetworkApi(runner) {
   var self = this;
 
   this._runner = runner;
-  this._connections = [];
+  this._connections = [null, null, null, null];
   this._ports = [];
 }
[FIX] Start counting socket file descriptors with number 4.

Fix assert due to reusing file descriptor 3.