diff --git a/websocket-sharp/Server/WebSocketServer.cs b/websocket-sharp/Server/WebSocketServer.cs
index fd4264f3..a140a652 100644
--- a/websocket-sharp/Server/WebSocketServer.cs
+++ b/websocket-sharp/Server/WebSocketServer.cs
@@ -120,7 +120,8 @@ namespace WebSocketSharp.Server
///
///
///
- /// An that represents the port number on which to listen.
+ /// An that represents the number of the port
+ /// on which to listen.
///
///
/// is less than 1 or greater than 65535.