The remains of his tomb were discovered near the epitaph found during reinvestigation in 1982 and the remains were designated as a historic site as "tomb of FUMI no Nemaro" on April 5, 1984.
1982年（昭和57年）に再調査が行われ、墓誌出土場所のすぐそばで墓の跡が見つかり、『文祢麻呂墓』として1984年（昭和59年）4月5日に国の史跡に指定された。