diff --git a/websocket-sharp/Net/HttpListenerRequest.cs b/websocket-sharp/Net/HttpListenerRequest.cs
index f5da8668..ac767e79 100644
--- a/websocket-sharp/Net/HttpListenerRequest.cs
+++ b/websocket-sharp/Net/HttpListenerRequest.cs
@@ -287,7 +287,7 @@ namespace WebSocketSharp.Net
     /// </value>
     public bool IsSecureConnection {
       get {
-        return _context.Connection.IsSecure;
+        return _connection.IsSecure;
       }
     }