[pap] Found unknown header {{MD4}}: Not doing anything

Hello, My LDAP server has the passwords stored in MD4 encoded format, which I am suspecting is the same as NT format... Is there a way to tell freeradius to treat {MD4} as it it was {NT} ? I am using: radiusd: FreeRADIUS Version 2.1.12, for host x86_64-redhat-linux-gnu, built on Jan 5 2012 at 18:31:23 Thanks a lot, Mohamed.