diff --git a/websocket-sharp/Net/WebHeaderCollection.cs b/websocket-sharp/Net/WebHeaderCollection.cs
index f2623353..8b007dea 100644
--- a/websocket-sharp/Net/WebHeaderCollection.cs
+++ b/websocket-sharp/Net/WebHeaderCollection.cs
@@ -1384,7 +1384,7 @@ namespace WebSocketSharp.Net
     /// <c>true</c> if the header cannot be set; otherwise, <c>false</c>.
     /// </returns>
     /// <param name="headerName">
-    /// A <see cref="string"/> that represents the name of the header to test.
+    /// A <see cref="string"/> that specifies the name of the header to test.
     /// </param>
     /// <param name="response">
     /// A <see cref="bool"/>: <c>true</c> if the test is for the response;