Machen once said

I never call myself a “Fundamentalist.”  There is indeed, no inherent objection to the term; and if the disjunction is between “Fundamentalism” and “Modernism,” then I am willing to call myself a Fundamentalist of the most pronounced type.  But after all, what I refer to call myself is not a “Fundamentalist” but a “Calvinist” – that is, an adherent to the Reformed Faith.  As such I regard myself as standing in the great central current of the Church’s life – the current which flows down from the Word of God through Augustine and Calvin, and which has found noteworthy expression in America in the great tradition represented by Charles Hodge and Benjamin Breckinridge Warfield and the other representatives of the “Princeton School.”

Hart and Muether quoting Machen in Fighting the Good Fight (Philadelphia: Orthodox Presbyterian Church, 1995), 13.