diff --git a/TLSharp.Core/Network/MtProtoPlainSender.cs b/TLSharp.Core/Network/MtProtoPlainSender.cs
index b88ecbb..16ddbc1 100644
--- a/TLSharp.Core/Network/MtProtoPlainSender.cs
+++ b/TLSharp.Core/Network/MtProtoPlainSender.cs
@@ -6,7 +6,6 @@ namespace TLSharp.Core.Network
 {
     public class MtProtoPlainSender
     {
-        private int sequence = 0;
         private int timeOffset;
         private long lastMessageId;
         private Random random;
diff --git a/TLSharp.Core/TelegramClient.cs b/TLSharp.Core/TelegramClient.cs
index 8ad5cfb..6880313 100644
--- a/TLSharp.Core/TelegramClient.cs
+++ b/TLSharp.Core/TelegramClient.cs
@@ -22,7 +22,6 @@ namespace TLSharp.Core
     public class TelegramClient : IDisposable
     {
         private MtProtoSender _sender;
-        private AuthKey _key;
         private TcpTransport _transport;
         private string _apiHash = "";
         private int _apiId = 0;