diff --git a/lib/relay.js b/lib/relay.js
index 95de678..c6b3278 100644
--- a/lib/relay.js
+++ b/lib/relay.js
@@ -460,7 +460,7 @@ var Server = {
       try {
         srv.portsMap[portnumber].close(function () {
           console.log("[DynTcpConn] closing server for ", portnumber);
-          delete srv.portMap[portnumber];
+          delete srv.portsMap[portnumber];
           delete PortServers[portnumber];
         });
       } catch(e) { /*ignore*/ }
diff --git a/package.json b/package.json
index 2829f18..f3a665d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "telebit-relay",
-  "version": "0.13.0",
+  "version": "0.13.1",
   "description": "Friends don't let friends localhost. Expose your bits with a secure connection even from behind NAT, Firewalls, in a box, with a fox, on a train or in a plane... or a Raspberry Pi in your closet. An attempt to create a better localtunnel.me server, a more open ngrok. Uses Automated HTTPS (Free SSL) via ServerName Indication (SNI). Can also tunnel tls and plain tcp.",
   "main": "lib/relay.js",
   "bin": {