checklink reporting broken fragments for links including %E1

To whom it may concern,

Using the http://validator.w3.org/checklink for a site it reports

Broken fragments like

     http://www.moonbade.com/top10/2004/2004.html#Garbh%E1n%20Blake 
(line 121)

I am using %E1 as outlined at 
http://www.w3schools.com/tags/ref_urlencode.asp

do I need to define something in the header to allow this?

Regards,

Tom Corcoran.