Problem adding extension: convert

[Scott Derrick]

CentOS7
HG 2.6.2

Repository has been in use for 10 years

I am trying to add the convert extension

Here is my hgrc after adding the extension, the rebase extension was added long ago and works fine

[paths]
#default = http://derricks@hg.concordworks.com/mbel

[web]
contact=*********************
description=The Mary Baker Eddy Papers Project
allow_push = *

[extensions]
rebase =
convert =

[hooks]
pretxnchangegroup.forbid_2heads = /home/repos/mbepp/.hg/forbid_2head.sh

When I execute "hg convert --help" I get the response


[root at centos7 mbepp]# hg convert --help
hg: unknown command 'convert'
'convert' is provided by the following extension:

     convert       import revisions from foreign VCS repositories into
                   Mercurial

use "hg help extensions" for information on enabling extensions

do I need to restart something for the hgrc change to take effect?

thanks,

Scott