diff --git a/Source/MQTTnet/Implementations/MqttTcpChannel.Uwp.cs b/Source/MQTTnet/Implementations/MqttTcpChannel.Uwp.cs
index a414fd7b..fde169b8 100644
--- a/Source/MQTTnet/Implementations/MqttTcpChannel.Uwp.cs
+++ b/Source/MQTTnet/Implementations/MqttTcpChannel.Uwp.cs
@@ -85,7 +85,7 @@ namespace MQTTnet.Implementations
                     socketProtectionLevel = SocketProtectionLevel.Tls10;
                 }
 
-                await _socket.ConnectAsync(new HostName(_options.Server), _options.GetPort().ToString()).AsTask().ConfigureAwait(false);
+                await _socket.ConnectAsync(new HostName(_options.Server), _options.GetPort().ToString(), socketProtectionLevel).AsTask().ConfigureAwait(false);
             }
 
             Endpoint = _socket.Information.RemoteAddress + ":" + _socket.Information.RemotePort;