diff --git a/mercurial/repoview.py b/mercurial/repoview.py
--- a/mercurial/repoview.py
+++ b/mercurial/repoview.py
@@ -236,6 +236,10 @@
             return self
         return self.unfiltered().filtered(name)
 
+    def addvisibilityexceptions(self, revs):
+        filtertable[self.filtername][1].update(revs)
+        self.invalidatevolatilesets()
+
     def __repr__(self):
         return r'<%s:%s %r>' % (self.__class__.__name__,
                                 pycompat.sysstr(self.filtername),