  We point out that Higgs rates into gauge bosons can be significantly modified
in composite pseudo Nambu--Goldstone boson (pNGB) Higgs models if quarks
belonging to the first two generation are relatively composite objects as well.
Although the lightness of the latter a priori screen them from the electroweak
symmetry breaking sector, we show, in an effective two-site description, that
their partners can lead to order one shifts in radiative Higgs couplings to
gluons and photons. Moreover, due to the pseudo-Goldstone nature of the Higgs
boson, the size of these corrections is completely controlled by the degree of
compositeness of the individual light quarks. The current measurements of
flavor-blind Higgs decay rates at the LHC thus provide an indirect probe of the
flavor structure of the framework of pNGB Higgs compositeness.
