Death date mistake in RD

There is a relinquishment deed created between my father and families of his two brothers. Everyone signed it and it has been already registered at sub registrar office and when we received the paper we saw that death date of one brother is mentioned wrong(instead of death date .. registration date of death certificate is mentioned) We even attached his death certificate along with the deed papers. Now what should we do? Will there be any problem in future as now my father(releasee) is the sole owner of property.. Please help me with this doubt ASAP.