From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
compensation guard /kˌɒmpənsˈeɪʃən ɡˈɑːd/
Ansetzfalz <masc>, Ansatzfalz <masc>, Anklebefalz <masc>, Flügenfalz <masc>, Ausgleichsfalz <masc>, Kreuzbruchfalz <masc>, Fälzel <neut>
Note: Buchbinden
Synonyms: filling-in guard, flange, stub
see: compensation guards, flanges, stubs