mercurial/repoview.py

--- a/mercurial/repoview.py	Mon May 03 12:22:06 2021 +0200
+++ b/mercurial/repoview.py	Mon May 03 12:22:16 2021 +0200
@@ -333,7 +333,7 @@
         r = super(filteredchangelogmixin, self).rev(node)
         if r in self.filteredrevs:
             raise error.FilteredLookupError(
-                hex(node), self.indexfile, _(b'filtered node')
+                hex(node), self._indexfile, _(b'filtered node')
             )
         return r