Adding syncprov to running slapd

["Marc Roos" <M.Roos@f1-outsourcing.eu>]

I am adding the syncprovider to a running server with these:

dn: cn=module{0},cn=config
changetype: modify
add: olcModuleLoad
olcModuleLoad: syncprov


dn: olcOverlay=syncprov,olcDatabase={2}mdb,cn=config
changetype: add
objectClass: olcOverlayConfig
objectClass: olcSyncProvConfig
olcOverlay: syncprov
olcSpNoPresent: TRUE
olcSpCheckpoint: 100 10
olcSpSessionlog: 100

However when I do slapd -VVV the overlay is not listed. Do I need to

1. restart?
2. use syncprov.la instead of syncprov?