We study the mod p homology of the gauge group G(k) (F-4) associated with a principal F-4 bundle by computing the Serre spectral sequence for the fibration Omega(4)(0)(F-4) -> G(k) (F-4) -> F-4. The main result is that the Serre spectral sequence collapses at the E-2-term except for p = 2, 13. (C) 2019 Elsevier B.V. All rights reserved.