diff --git a/SparkleLib/SparkleListenerFactory.cs b/SparkleLib/SparkleListenerFactory.cs
index ea4ee0e7..95284e43 100644
--- a/SparkleLib/SparkleListenerFactory.cs
+++ b/SparkleLib/SparkleListenerFactory.cs
@@ -40,7 +40,7 @@ namespace SparkleLib {
             // Please see the SparkleShare wiki if you wish to run
             // your own service instead
             if (string.IsNullOrEmpty (uri))
-                uri = "tcp://notifications.sparkleshare.org:80";
+                uri = "tcp://notifications.sparkleshare.org:443";
 
             Uri announce_uri = new Uri (uri);
 
diff --git a/SparkleLib/SparkleListenerTcp.cs b/SparkleLib/SparkleListenerTcp.cs
index 14ec169b..d134fdb9 100755
--- a/SparkleLib/SparkleListenerTcp.cs
+++ b/SparkleLib/SparkleListenerTcp.cs
@@ -59,7 +59,7 @@ namespace SparkleLib {
                 int port = Server.Port;
 
                 if (port < 0)
-                    port = 80;
+                    port = 443;
 
                 try {
                     this.socket = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp) {