diff --git a/mercurial/error.py b/mercurial/error.py
--- a/mercurial/error.py
+++ b/mercurial/error.py
@@ -18,7 +18,7 @@ class HintException(Exception):
         Exception.__init__(self, *args)
         self.hint = kw.get('hint')
 
-class RevlogError(Exception):
+class RevlogError(HintException):
     pass
 
 class FilteredIndexError(IndexError):