diff --git a/websocket-sharp/WebSocket.cs b/websocket-sharp/WebSocket.cs
index b0f55635..b721cb0e 100644
--- a/websocket-sharp/WebSocket.cs
+++ b/websocket-sharp/WebSocket.cs
@@ -2679,8 +2679,8 @@ namespace WebSocketSharp
     /// Sends a ping using the WebSocket connection.
     /// </summary>
     /// <returns>
-    /// <c>true</c> if the ping has been sent and then a pong has been
-    /// received within a time; otherwise, <c>false</c>.
+    /// <c>true</c> if the sending a ping has done with no error and
+    /// a pong has been received within a time; otherwise, <c>false</c>.
     /// </returns>
     public bool Ping ()
     {