diff --git a/websocket-sharp/Logger.cs b/websocket-sharp/Logger.cs
index 415f2e2c..dd98e880 100644
--- a/websocket-sharp/Logger.cs
+++ b/websocket-sharp/Logger.cs
@@ -99,7 +99,7 @@ namespace WebSocketSharp
///
/// An Action<LogData, string> delegate that references the method(s)
/// used to output a log. A parameter passed to this delegate
- /// is if any.
+ /// is .
///
public Logger (LogLevel level, string file, Action output)
{
@@ -162,7 +162,7 @@ namespace WebSocketSharp
///
/// An Action<LogData, string> delegate that references the method(s) used to
/// output a log. A parameter passed to this delegate is the value of
- /// the if any.
+ /// the .
///
///
/// If the value to set is , the current output action is changed to