Article 1364

When through the ignorance, lack of skill, negligence or bad faith on the part of the person drafting the instrument or of the clerk or typist, the instrument does not express the true intention of the parties, the courts may order that the instrument be reformed.

Nang dahil sa walang kaalaman, walang kasanayan, kapabayaan, may masamang intensiyon, sa panig ng taong nagsususog ng kapamaraanan, o ang tagatala, ang kapamaraanan o instrumento na hindi nagpapahayag ng tunay na intensiyon ng mga partido, ang hukuman ay pwedeng mag-atas na baguhin ang kapamaraanan.

Ignorance, lack of skill, negligence or bad faith must be on the part of a third person. Under the above article, neither party is responsible for the mistake. Hence, either party may ask for reformation.