diff --git a/websocket-sharp/Ext.cs b/websocket-sharp/Ext.cs
index 97649eb9..0b799125 100644
--- a/websocket-sharp/Ext.cs
+++ b/websocket-sharp/Ext.cs
@@ -1964,8 +1964,8 @@ namespace WebSocketSharp
     /// URL-encodes the specified <see cref="string"/>.
     /// </summary>
     /// <returns>
-    /// A <see cref="string"/> that receives the encoded string,
-    /// or <paramref name="value"/> if it's <see langword="null"/> or empty.
+    /// A <see cref="string"/> that receives the encoded string or
+    /// <paramref name="value"/> if it is <see langword="null"/> or empty.
     /// </returns>
     /// <param name="value">
     /// A <see cref="string"/> to encode.