diff --git a/websocket-sharp/Net/HttpListenerRequest.cs b/websocket-sharp/Net/HttpListenerRequest.cs
index 58ccfe99..3a984d5f 100644
--- a/websocket-sharp/Net/HttpListenerRequest.cs
+++ b/websocket-sharp/Net/HttpListenerRequest.cs
@@ -482,8 +482,7 @@ namespace WebSocketSharp.Net
     ///   A <see cref="Uri"/> converted from the value of the Referer header.
     ///   </para>
     ///   <para>
-    ///   <see langword="null"/> if the Referer header is not present or
-    ///   the conversion has failed.
+    ///   <see langword="null"/> if the header value is not available.
     ///   </para>
     /// </value>
     public Uri UrlReferrer {