diff --git a/remotefilelog/shallowrepo.py b/remotefilelog/shallowrepo.py
--- a/remotefilelog/shallowrepo.py
+++ b/remotefilelog/shallowrepo.py
@@ -223,7 +223,10 @@
                 localrevs = repo
 
             mfl = repo.manifestlog
-            mfrevlog = mfl._revlog
+            if util.safehasattr(mfl, 'getstorage'):
+                mfrevlog = mfl.getstorage('')
+            else:
+                mfrevlog = mfl._revlog
             if base is not None:
                 mfdict = mfl[repo[base].manifestnode()].read()
                 skip = set(mfdict.iteritems())