diff --git a/websocket-sharp/Server/WebSocketBehavior.cs b/websocket-sharp/Server/WebSocketBehavior.cs
index 25d18c1d..7154c4e3 100644
--- a/websocket-sharp/Server/WebSocketBehavior.cs
+++ b/websocket-sharp/Server/WebSocketBehavior.cs
@@ -422,7 +422,7 @@ namespace WebSocketSharp.Server
     }
 
     /// <summary>
-    /// Called when the WebSocket instance used in a session gets an error.
+    /// Called when the WebSocket instance for a session gets an error.
     /// </summary>
     /// <param name="e">
     /// A <see cref="ErrorEventArgs"/> that represents the event data passed