About xref

Hello list,

Once again about my book. Sometimes (in fact 4 times in all my 400  
pages), a xref tag put the page number with the link.

(cf. la section intitulée « Montage du répertoire Groups à la  
connexion » [237]).

Every time the referenced part is in the same chapter and before the  
reference call.

Why this behavior ? And How can I stop it and have only the title  
reference ?

Thanks in advance,

-- 
Jacques