diff --git a/hgext3rd/p4fastimport/__init__.py b/hgext3rd/p4fastimport/__init__.py
--- a/hgext3rd/p4fastimport/__init__.py
+++ b/hgext3rd/p4fastimport/__init__.py
@@ -52,7 +52,7 @@
     # workaround by not allowing inlined revlogs at all.
     revlog.REVLOG_DEFAULT_VERSION = revlog.REVLOG_DEFAULT_FORMAT
 
-def reposetup(ui, repo):
+def _reposetup(ui, repo):
     def nothing(orig, *args, **kwargs):
         pass
     def yoloverify(orig, *args, **kwargs):
@@ -60,14 +60,16 @@
         # during their repo setup.
         repo.svfs.options['lfsbypass'] = True
         return orig(*args, **kwargs)
-    def handlelfs(loaded):
-        if loaded:
-            lfs = extensions.find('lfs')
-            extensions.wrapfunction(lfs.blobstore.local, 'write', nothing)
-            extensions.wrapfunction(lfs.blobstore.local, 'read', nothing)
 
     extensions.wrapfunction(verify.verifier, 'verify', yoloverify)
-    extensions.afterloaded('lfs', handlelfs)
+
+    try:
+        lfs = extensions.find('lfs')
+    except KeyError:
+        pass
+    else:
+        extensions.wrapfunction(lfs.blobstore.local, 'write', nothing)
+        extensions.wrapfunction(lfs.blobstore.local, 'read', nothing)
 
 def writebookmark(tr, repo, revisions, name):
     if len(revisions) > 0:
@@ -190,6 +192,8 @@
     _('[-P PATH] [-B NAME] [--limit N] [CLIENT]'),
     inferrepo=True)
 def p4fastimport(ui, repo, client, **opts):
+    _reposetup(ui, repo)
+
     if 'fncache' in repo.requirements:
         raise error.Abort(_('fncache must be disabled'))
 
@@ -336,6 +340,8 @@
         _('[-P PATH] client [-B NAME] bookmarkname'),
         )
 def p4syncimport(ui, repo, client, **opts):
+    _reposetup(ui, repo)
+
     if opts.get('bookmark'):
         scmutil.checknewlabel(repo, opts['bookmark'], 'bookmark')
 
@@ -419,6 +425,8 @@
           ('r', 'rev', '.', _('display LFS files in REV')),
           ('A', 'all', None, _('display LFS files all revisions'))])
 def debugscanlfs(ui, repo, **opts):
+    _reposetup(ui, repo)
+
     lfs = extensions.find('lfs')
     def display(repo, filename, flog, rev):
         filenode = flog.node(rev)