diff --git a/websocket-sharp/Net/ClientSslConfiguration.cs b/websocket-sharp/Net/ClientSslConfiguration.cs
index 714aab62..b6abbd5f 100644
--- a/websocket-sharp/Net/ClientSslConfiguration.cs
+++ b/websocket-sharp/Net/ClientSslConfiguration.cs
@@ -76,8 +76,9 @@ namespace WebSocketSharp.Net
     /// will share a secure connection.
     /// </param>
     public ClientSslConfiguration (string targetHost)
-      : this (targetHost, null, SslProtocols.Default, false)
     {
+      _targetHost = targetHost;
+      _enabledSslProtocols = SslProtocols.Default;
     }
 
     /// <summary>
@@ -103,41 +104,6 @@ namespace WebSocketSharp.Net
       _targetHost = configuration._targetHost;
     }
 
-    /// <summary>
-    /// Initializes a new instance of the <see cref="ClientSslConfiguration"/> class
-    /// with the specified <paramref name="targetHost"/>,
-    /// <paramref name="clientCertificates"/>,
-    /// <paramref name="enabledSslProtocols"/>,
-    /// and <paramref name="checkCertificateRevocation"/>.
-    /// </summary>
-    /// <param name="targetHost">
-    /// A <see cref="string"/> that represents the name of the server that
-    /// will share a secure connection.
-    /// </param>
-    /// <param name="clientCertificates">
-    /// A <see cref="X509CertificateCollection"/> that contains client certificates.
-    /// </param>
-    /// <param name="enabledSslProtocols">
-    /// The <see cref="SslProtocols"/> enum values that represent the protocols
-    /// used for authentication.
-    /// </param>
-    /// <param name="checkCertificateRevocation">
-    /// <c>true</c> if the certificate revocation list is checked during
-    /// authentication; otherwise, <c>false</c>.
-    /// </param>
-    public ClientSslConfiguration (
-      string targetHost,
-      X509CertificateCollection clientCertificates,
-      SslProtocols enabledSslProtocols,
-      bool checkCertificateRevocation
-    )
-    {
-      _targetHost = targetHost;
-      _clientCerts = clientCertificates;
-      _enabledSslProtocols = enabledSslProtocols;
-      _checkCertRevocation = checkCertificateRevocation;
-    }
-
     #endregion
 
     #region Public Properties