Cross sections of the ⁵⁴Fe(n,p)⁵⁴Mn reaction for JENDL-3T are calculated using the GNASH code. Fission spectrum averaged cross sections of the reaction in ENDF/B-4 and -5 and JENDL-2 and -3T are calculated. The calculated/experiment ratios are 1.03, 1.03, 0.94, and 1.04 for ENDF/B-4 and -5 and JENDL-2 and -3T, respectively. The cross sections for JENDL-3T are as reliable as the cross sections of ENDF/B-4 and -5.