diff --git a/Source/MQTTnet/Client/IMqttClientFactory.cs b/Source/MQTTnet/Client/IMqttClientFactory.cs
index a15b499b..cd687afc 100644
--- a/Source/MQTTnet/Client/IMqttClientFactory.cs
+++ b/Source/MQTTnet/Client/IMqttClientFactory.cs
@@ -7,5 +7,9 @@ namespace MQTTnet.Client
         IMqttClient CreateMqttClient();
 
         IMqttClient CreateMqttClient(IMqttNetLogger logger);
+
+        IMqttClient CreateMqttClient(IMqttClientAdapterFactory adapterFactory);
+
+        IMqttClient CreateMqttClient(IMqttNetLogger logger, IMqttClientAdapterFactory adapterFactory);
     }
 }
\ No newline at end of file
diff --git a/Source/MQTTnet/Server/IMqttServerFactory.cs b/Source/MQTTnet/Server/IMqttServerFactory.cs
index 6e399cae..7d23ed36 100644
--- a/Source/MQTTnet/Server/IMqttServerFactory.cs
+++ b/Source/MQTTnet/Server/IMqttServerFactory.cs
@@ -8,6 +8,8 @@ namespace MQTTnet.Server
     {
         IMqttServer CreateMqttServer();
 
+        IMqttServer CreateMqttServer(IMqttNetLogger logger);
+
         IMqttServer CreateMqttServer(IEnumerable<IMqttServerAdapter> adapters, IMqttNetLogger logger);
     }
 }
\ No newline at end of file