diff --git a/remotefilelog/remotefilectx.py b/remotefilelog/remotefilectx.py
--- a/remotefilelog/remotefilectx.py
+++ b/remotefilelog/remotefilectx.py
@@ -72,7 +72,7 @@
             # descendant, we can (lazily) correct for linkrev aliases
             linknode = self._adjustlinknode(self._path, self._filelog,
                                             self._filenode, self._descendantrev)
-            return self._repo.changelog.rev(linknode)
+            return self._repo.unfiltered().changelog.rev(linknode)
         else:
             return self.linkrev()
 
@@ -401,7 +401,7 @@
             return False
         try:
             # Use the C fastpath to check if the given linknode is correct.
-            cl = self._repo.changelog
+            cl = self._repo.unfiltered().changelog
             return any(cl.isancestor(linknode, cl.node(r)) for r in revs)
         except error.LookupError:
             # The linknode read from the blob may have been stripped or