diff --git a/websocket-sharp/Net/HttpDigestIdentity.cs b/websocket-sharp/Net/HttpDigestIdentity.cs
index db03b807..f7267194 100644
--- a/websocket-sharp/Net/HttpDigestIdentity.cs
+++ b/websocket-sharp/Net/HttpDigestIdentity.cs
@@ -81,7 +81,7 @@ namespace WebSocketSharp.Net
     }
 
     /// <summary>
-    /// Gets the nc parameter from the HTTP Digest authentication credentials.
+    /// Gets the nc parameter from a digest authentication attempt.
     /// </summary>
     /// <value>
     /// A <see cref="string"/> that represents the nc parameter.