Thread:Project:Support desk/wfSpecialWhatlinkshere missing in \includes\SpecialWhatLinksHere

When trying to embed the SpecialWhatlinkshere page, an error is thrown:

An exception occurred: call_user_func(wfSpecialWhatlinkshere) [function.call-user-func]: First argument is expected to be a valid callback in /w/includes/SpecialPage.php on line 792

I followed the instruction on m:Help:Embed page, but it seems as if the wfSpecialWhatlinkshere function has been removed from the class, causing the error.

Version used: 1.16.5.

Thanks.