diff --git a/mercurial/context.py b/mercurial/context.py
--- a/mercurial/context.py
+++ b/mercurial/context.py
@@ -772,8 +772,8 @@
         changesets.
         """
         attrs = vars(self)
-        hastoprev = (r'_changeid' in attrs or r'_changectx' in attrs)
-        if hastoprev:
+        hasstoprev = (r'_changeid' in attrs or r'_changectx' in attrs)
+        if hasstoprev:
             return self._adjustlinkrev(self.rev(), inclusive=True)
         else:
             return self.linkrev()