diff -r 7250cbaabde0 -r 98681293c890 hgext/largefiles/lfcommands.py
--- a/hgext/largefiles/lfcommands.py	Sun Dec 23 21:54:56 2018 -0500
+++ b/hgext/largefiles/lfcommands.py	Sun Dec 23 17:26:25 2018 -0500
@@ -20,12 +20,12 @@
     cmdutil,
     context,
     error,
+    exthelper,
     hg,
     lock,
     match as matchmod,
     node,
     pycompat,
-    registrar,
     scmutil,
     util,
 )
@@ -44,10 +44,9 @@
 
 # -- Commands ----------------------------------------------------------
 
-cmdtable = {}
-command = registrar.command(cmdtable)
+eh = exthelper.exthelper()
 
-@command('lfconvert',
+@eh.command('lfconvert',
     [('s', 'size', '',
       _('minimum size (MB) for files to be converted as largefiles'), 'SIZE'),
     ('', 'to-normal', False,
@@ -560,7 +559,7 @@
             statuswriter(_('%d largefiles updated, %d removed\n') % (updated,
                 removed))
 
-@command('lfpull',
+@eh.command('lfpull',
     [('r', 'rev', [], _('pull largefiles for these revisions'))
     ] + cmdutil.remoteopts,
     _('-r REV... [-e CMD] [--remotecmd CMD] [SOURCE]'))
@@ -599,7 +598,7 @@
         numcached += len(cached)
     ui.status(_("%d largefiles cached\n") % numcached)
 
-@command('debuglfput',
+@eh.command('debuglfput',
     [] + cmdutil.remoteopts,
     _('FILE'))
 def debuglfput(ui, repo, filepath, **kwargs):