diff --git a/lib/netstd/Thrift/Protocol/TBinaryProtocol.cs b/lib/netstd/Thrift/Protocol/TBinaryProtocol.cs
index 37bca80..7a0243a 100644
--- a/lib/netstd/Thrift/Protocol/TBinaryProtocol.cs
+++ b/lib/netstd/Thrift/Protocol/TBinaryProtocol.cs
@@ -1,4 +1,4 @@
-﻿// Licensed to the Apache Software Foundation(ASF) under one
+// Licensed to the Apache Software Foundation(ASF) under one
 // or more contributor license agreements.See the NOTICE file
 // distributed with this work for additional information
 // regarding copyright ownership.The ASF licenses this file
@@ -588,7 +588,7 @@
             return Encoding.UTF8.GetString(buf, 0, buf.Length);
         }
 
-        public class Factory : ITProtocolFactory
+        public class Factory : TProtocolFactory
         {
             protected bool StrictRead;
             protected bool StrictWrite;
@@ -604,10 +604,10 @@
                 StrictWrite = strictWrite;
             }
 
-            public TProtocol GetProtocol(TTransport trans)
+            public override TProtocol GetProtocol(TTransport trans)
             {
                 return new TBinaryProtocol(trans, StrictRead, StrictWrite);
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/lib/netstd/Thrift/Protocol/TCompactProtocol.cs b/lib/netstd/Thrift/Protocol/TCompactProtocol.cs
index 9ff640a..e6c5dbd 100644
--- a/lib/netstd/Thrift/Protocol/TCompactProtocol.cs
+++ b/lib/netstd/Thrift/Protocol/TCompactProtocol.cs
@@ -1,4 +1,4 @@
-﻿// Licensed to the Apache Software Foundation(ASF) under one
+// Licensed to the Apache Software Foundation(ASF) under one
 // or more contributor license agreements.See the NOTICE file
 // distributed with this work for additional information
 // regarding copyright ownership.The ASF licenses this file
@@ -891,9 +891,9 @@
             buf[off + 7] = (byte) ((n >> 56) & 0xff);
         }
 
-        public class Factory : ITProtocolFactory
+        public class Factory : TProtocolFactory
         {
-            public TProtocol GetProtocol(TTransport trans)
+            public override TProtocol GetProtocol(TTransport trans)
             {
                 return new TCompactProtocol(trans);
             }
@@ -919,4 +919,4 @@
             public const byte Struct = 0x0C;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/lib/netstd/Thrift/Protocol/TJSONProtocol.cs b/lib/netstd/Thrift/Protocol/TJSONProtocol.cs
index fab1385..8e40c48 100644
--- a/lib/netstd/Thrift/Protocol/TJSONProtocol.cs
+++ b/lib/netstd/Thrift/Protocol/TJSONProtocol.cs
@@ -785,9 +785,9 @@
         /// <summary>
         ///     Factory for JSON protocol objects
         /// </summary>
-        public class Factory : ITProtocolFactory
+        public class Factory : TProtocolFactory
         {
-            public TProtocol GetProtocol(TTransport trans)
+            public override TProtocol GetProtocol(TTransport trans)
             {
                 return new TJsonProtocol(trans);
             }
diff --git a/lib/netstd/Thrift/Protocol/ITProtocolFactory.cs b/lib/netstd/Thrift/Protocol/TProtocolFactory.cs
similarity index 89%
rename from lib/netstd/Thrift/Protocol/ITProtocolFactory.cs
rename to lib/netstd/Thrift/Protocol/TProtocolFactory.cs
index 3abcbb0..31b0514 100644
--- a/lib/netstd/Thrift/Protocol/ITProtocolFactory.cs
+++ b/lib/netstd/Thrift/Protocol/TProtocolFactory.cs
@@ -20,8 +20,8 @@
 namespace Thrift.Protocol
 {
     // ReSharper disable once InconsistentNaming
-    public interface ITProtocolFactory
+    public abstract class TProtocolFactory
     {
-        TProtocol GetProtocol(TTransport trans);
+        public abstract TProtocol GetProtocol(TTransport trans);
     }
-}
\ No newline at end of file
+}