diff --git a/websocket-sharp/PayloadData.cs b/websocket-sharp/PayloadData.cs
index f7dfa68b..900faedd 100644
--- a/websocket-sharp/PayloadData.cs
+++ b/websocket-sharp/PayloadData.cs
@@ -50,7 +50,7 @@ namespace WebSocketSharp
public static readonly PayloadData Empty;
///
- /// Represents the allowable max length.
+ /// Represents the allowable max length of payload data.
///
///
///
@@ -58,9 +58,9 @@ namespace WebSocketSharp
/// incoming payload data is greater than the value of this field.
///
///
- /// If you would like to change the value, you must set it to a value
- /// between WebSocket.FragmentLength and Int64.MaxValue
- /// inclusive.
+ /// If you would like to change the value of this field, it must be
+ /// a number between and
+ /// inclusive.
///
///
public static readonly ulong MaxLength;