diff --git a/websocket-sharp/Net/WebHeaderCollection.cs b/websocket-sharp/Net/WebHeaderCollection.cs
index c80eb26f..fe19250b 100644
--- a/websocket-sharp/Net/WebHeaderCollection.cs
+++ b/websocket-sharp/Net/WebHeaderCollection.cs
@@ -536,7 +536,10 @@ namespace WebSocketSharp.Net
             "WwwAuthenticate",
             new HttpHeaderInfo (
               "WWW-Authenticate",
-              HttpHeaderType.Response | HttpHeaderType.Restricted | HttpHeaderType.MultiValue)
+              HttpHeaderType.Response
+              | HttpHeaderType.Restricted
+              | HttpHeaderType.MultiValue
+            )
           }
         };
     }