diff --git a/src/Fleck/Fleck.csproj b/src/Fleck/Fleck.csproj
index 3a6fabc..7fe4ddb 100644
--- a/src/Fleck/Fleck.csproj
+++ b/src/Fleck/Fleck.csproj
@@ -9,6 +9,6 @@
     <PackageProjectUrl>https://github.com/statianzo/Fleck</PackageProjectUrl>
     <RepositoryUrl>https://github.com/statianzo/Fleck</RepositoryUrl>
     <PackageTags>websockets server html5 events</PackageTags>
-    <TargetFrameworks>net40;net45;netstandard2.0;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>net472;netstandard2.0</TargetFrameworks>
   </PropertyGroup>
 </Project>
diff --git a/src/Fleck/Interfaces/ISocket.cs b/src/Fleck/Interfaces/ISocket.cs
index b6481a0..1ab9624 100644
--- a/src/Fleck/Interfaces/ISocket.cs
+++ b/src/Fleck/Interfaces/ISocket.cs
@@ -14,6 +14,7 @@ public interface ISocket
         string RemoteIpAddress { get; }
         int RemotePort { get; }
         Stream Stream { get; }
+        Socket Socket { get; }
         bool NoDelay { get; set; }
         EndPoint LocalEndPoint { get; }
 
diff --git a/src/Fleck/SocketWrapper.cs b/src/Fleck/SocketWrapper.cs
index 379485e..e7218a1 100644
--- a/src/Fleck/SocketWrapper.cs
+++ b/src/Fleck/SocketWrapper.cs
@@ -104,6 +104,11 @@ public Stream Stream
             get { return _stream; }
         }
 
+        public Socket Socket
+        {
+            get { return _socket; }
+        }
+
         public bool NoDelay
         {
             get { return _socket.NoDelay; }